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253106425 = 52111383853
BaseRepresentation
bin11110001011000…
…01100011111001
3122122021010202001
433011201203321
51004243401200
641040541001
76162240415
oct1705414371
9578233661
10253106425
1111a965670
1270921761
134058c620
1425887d45
151734976a
hexf1618f9

253106425 has 48 divisors (see below), whose sum is σ = 373601088. Its totient is φ = 167673600.

The previous prime is 253106419. The next prime is 253106437. The reversal of 253106425 is 524601352.

It is not a de Polignac number, because 253106425 - 27 = 253106297 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 253106393 and 253106402.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 296299 + ... + 297151.

It is an arithmetic number, because the mean of its divisors is an integer number (7783356).

Almost surely, 2253106425 is an apocalyptic number.

253106425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

253106425 is a deficient number, since it is larger than the sum of its proper divisors (120494663).

253106425 is a wasteful number, since it uses less digits than its factorization.

253106425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970 (or 965 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 253106425 is about 15909.3188100559. The cubic root of 253106425 is about 632.5590252529.

Adding to 253106425 its reverse (524601352), we get a palindrome (777707777).

The spelling of 253106425 in words is "two hundred fifty-three million, one hundred six thousand, four hundred twenty-five".

Divisors: 1 5 11 13 25 55 65 83 143 275 325 415 715 853 913 1079 2075 3575 4265 4565 5395 9383 11089 11869 21325 22825 26975 46915 55445 59345 70799 121979 234575 277225 296725 353995 609895 778789 920387 1769975 3049475 3893945 4601935 10124257 19469725 23009675 50621285 253106425