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25303003025 = 521012120121
BaseRepresentation
bin10111100100001011…
…010010111110010001
32102022102001201211012
4113210023102332101
5403310032044100
615342443100305
71554013656056
oct274413227621
972272051735
1025303003025
11a804981753
124aa1b11695
132503246151
1413206dd02d
159d15c6135
hex5e42d2f91

25303003025 has 6 divisors (see below), whose sum is σ = 31375723782. Its totient is φ = 20242402400.

The previous prime is 25303003007. The next prime is 25303003051. The reversal of 25303003025 is 52030030352.

It can be written as a sum of positive squares in 3 ways, for example, as 4311629569 + 20991373456 = 65663^2 + 144884^2 .

It is not a de Polignac number, because 25303003025 - 216 = 25302937489 is a prime.

It is a super-3 number, since 3×253030030253 (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 506060036 + ... + 506060085.

It is an arithmetic number, because the mean of its divisors is an integer number (5229287297).

Almost surely, 225303003025 is an apocalyptic number.

25303003025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25303003025 is a deficient number, since it is larger than the sum of its proper divisors (6072720757).

25303003025 is a wasteful number, since it uses less digits than its factorization.

25303003025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012120131 (or 1012120126 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 23.

Adding to 25303003025 its reverse (52030030352), we get a palindrome (77333033377).

The spelling of 25303003025 in words is "twenty-five billion, three hundred three million, three thousand, twenty-five".

Divisors: 1 5 25 1012120121 5060600605 25303003025