25613456106 has 24 divisors (see below), whose sum is σ = 59590490400. Its totient is φ = 7318130232.

The previous prime is 25613456069. The next prime is 25613456129. The reversal of 25613456106 is 60165431652.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43560006 + ... + 43560593.

It is an arithmetic number, because the mean of its divisors is an integer number (2482937100).

Almost surely, 2^25613456106 is an apocalyptic number.

25613456106 is an abundant number, since it is smaller than the sum of its proper divisors (33977034294).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25613456106 is a wasteful number, since it uses less digits than its factorization.

25613456106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87120618 (or 87120611 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 39.

Adding to 25613456106 its reverse (60165431652), we get a palindrome (85778887758).

The spelling of 25613456106 in words is "twenty-five billion, six hundred thirteen million, four hundred fifty-six thousand, one hundred six".