25032556161056 has 96 divisors (see below), whose sum is σ = 50481717350400. Its totient is φ = 12215982562560.

The previous prime is 25032556161031. The next prime is 25032556161059. The reversal of 25032556161056 is 65016165523052.

It is a super-2 number, since 2×25032556161056² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25032556161056.

It is not an unprimeable number, because it can be changed into a prime (25032556161059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90553415 + ... + 90829433.

It is an arithmetic number, because the mean of its divisors is an integer number (525851222400).

Almost surely, 2^{25032556161056} is an apocalyptic number.

It is an amenable number.

25032556161056 is an abundant number, since it is smaller than the sum of its proper divisors (25449161189344).

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

25032556161056 is a wasteful number, since it uses less digits than its factorization.

25032556161056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276502 (or 276494 counting only the distinct ones).

The product of its (nonzero) digits is 1620000, while the sum is 47.

The spelling of 25032556161056 in words is "twenty-five trillion, thirty-two billion, five hundred fifty-six million, one hundred sixty-one thousand, fifty-six".