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25252525025253 = 35199551572659
BaseRepresentation
bin1011011110111100011111…
…10010001010011111100101
310022102010011212222001200000
411233132033302022133211
511302214132401302003
6125412503322211513
75214302053051341
oct557361762123745
9108363155861600
1025252525025253
118056599054679
1229ba137653b99
1311123c25b8b66
1463432b8dc621
152dbd21de21a3
hex16f78fc8a7e5

25252525025253 has 48 divisors (see below), whose sum is σ = 39821951769600. Its totient is φ = 15947265452400.

The previous prime is 25252525025239. The next prime is 25252525025267. The reversal of 25252525025253 is 35252052525252.

25252525025253 is a `hidden beast` number, since 2 + 5 + 2 + 52 + 525 + 0 + 25 + 2 + 53 = 666.

It is an interprime number because it is at equal distance from previous prime (25252525025239) and next prime (25252525025267).

It is a de Polignac number, because none of the positive numbers 2k-25252525025253 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25252525025199 and 25252525025208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25252525025213) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 43810638 + ... + 44383296.

It is an arithmetic number, because the mean of its divisors is an integer number (829623995200).

Almost surely, 225252525025253 is an apocalyptic number.

It is an amenable number.

25252525025253 is a deficient number, since it is larger than the sum of its proper divisors (14569426744347).

25252525025253 is an equidigital number, since it uses as much as digits as its factorization.

25252525025253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582244 (or 582232 counting only the distinct ones).

The product of its (nonzero) digits is 3000000, while the sum is 45.

The spelling of 25252525025253 in words is "twenty-five trillion, two hundred fifty-two billion, five hundred twenty-five million, twenty-five thousand, two hundred fifty-three".

Divisors: 1 3 9 19 27 57 81 171 243 513 1539 4617 9551 28653 85959 181469 257877 544407 572659 773631 1633221 1717977 2320893 4899663 5153931 10880521 14698989 15461793 32641563 44096967 46385379 97924689 139156137 293774067 881322201 2643966603 5469466109 16408398327 49225194981 103919856071 147675584943 311759568213 443026754829 935278704639 1329080264487 2805836113917 8417508341751 25252525025253