25988089488 has 20 divisors (see below), whose sum is σ = 67135897968. Its totient is φ = 8662696480.

The previous prime is 25988089447. The next prime is 25988089513. The reversal of 25988089488 is 88498088952.

It is a super-2 number, since 2×25988089488² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 270709218 + ... + 270709313.

Almost surely, 2^25988089488 is an apocalyptic number.

It is an amenable number.

25988089488 is an abundant number, since it is smaller than the sum of its proper divisors (41147808480).

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

25988089488 is a wasteful number, since it uses less digits than its factorization.

25988089488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541418542 (or 541418536 counting only the distinct ones).

The product of its (nonzero) digits is 106168320, while the sum is 69.

The spelling of 25988089488 in words is "twenty-five billion, nine hundred eighty-eight million, eighty-nine thousand, four hundred eighty-eight".