25431956676 has 81 divisors (see below), whose sum is σ = 74801763309. Its totient is φ = 7264359648.

The previous prime is 25431956647. The next prime is 25431956689. The reversal of 25431956676 is 67665913452.

The square root of 25431956676 is 159474.

It is a perfect power (a square), and thus also a powerful number.

25431956676 is a `hidden beast` number, since 2 + 5 + 4 + 3 + 1 + 9 + 566 + 76 = 666.

It can be written as a sum of positive squares in only one way, i.e., 333792900 + 25098163776 = 18270^2 + 158424^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 6696010 + ... + 6699806.

Almost surely, 2^25431956676 is an apocalyptic number.

25431956676 is the 159474-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25431956676

25431956676 is an abundant number, since it is smaller than the sum of its proper divisors (49369806633).

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

25431956676 is an equidigital number, since it uses as much as digits as its factorization.

25431956676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7618 (or 3809 counting only the distinct ones).

The product of its digits is 8164800, while the sum is 54.

The spelling of 25431956676 in words is "twenty-five billion, four hundred thirty-one million, nine hundred fifty-six thousand, six hundred seventy-six".