25613794255 has 16 divisors (see below), whose sum is σ = 35844379200. Its totient is φ = 17563743456.

The previous prime is 25613794247. The next prime is 25613794301. The reversal of 25613794255 is 55249731652.

It is not a de Polignac number, because 25613794255 - 2³ = 25613794247 is a prime.

It is a super-2 number, since 2×25613794255² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a junction number, because it is equal to n+sod(n) for n = 25613794199 and 25613794208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7465864 + ... + 7469293.

It is an arithmetic number, because the mean of its divisors is an integer number (2240273700).

Almost surely, 2^25613794255 is an apocalyptic number.

25613794255 is a deficient number, since it is larger than the sum of its proper divisors (10230584945).

25613794255 is an equidigital number, since it uses as much as digits as its factorization.

25613794255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14935183 (or 14935169 counting only the distinct ones).

The product of its digits is 2268000, while the sum is 49.

The spelling of 25613794255 in words is "twenty-five billion, six hundred thirteen million, seven hundred ninety-four thousand, two hundred fifty-five".