25456087072 has 24 divisors (see below), whose sum is σ = 53971800876. Its totient is φ = 11748963072.

The previous prime is 25456087043. The next prime is 25456087073. The reversal of 25456087072 is 27078065452.

It can be written as a sum of positive squares in 2 ways, for example, as 18592958736 + 6863128336 = 136356^2 + 82844^2 .

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (25456087073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30595843 + ... + 30596674.

Almost surely, 2^25456087072 is an apocalyptic number.

It is an amenable number.

25456087072 is an abundant number, since it is smaller than the sum of its proper divisors (28515713804).

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

25456087072 is a wasteful number, since it uses less digits than its factorization.

25456087072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61192540 (or 61192532 counting only the distinct ones).

The product of its (nonzero) digits is 940800, while the sum is 46.

The spelling of 25456087072 in words is "twenty-five billion, four hundred fifty-six million, eighty-seven thousand, seventy-two".