25512513088 has 42 divisors (see below), whose sum is σ = 53779633106. Its totient is φ = 12005879808.

The previous prime is 25512513073. The next prime is 25512513197. The reversal of 25512513088 is 88031521552.

It can be written as a sum of positive squares in 3 ways, for example, as 17500114944 + 8012398144 = 132288^2 + 89512^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 25512513088.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 671181 + ... + 708172.

Almost surely, 2^25512513088 is an apocalyptic number.

It is an amenable number.

25512513088 is an abundant number, since it is smaller than the sum of its proper divisors (28267120018).

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

25512513088 is a wasteful number, since it uses less digits than its factorization.

25512513088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1379399 (or 1379372 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 40.

The spelling of 25512513088 in words is "twenty-five billion, five hundred twelve million, five hundred thirteen thousand, eighty-eight".