25087224440 has 16 divisors (see below), whose sum is σ = 56446255080. Its totient is φ = 10034889760.

The previous prime is 25087224439. The next prime is 25087224469. The reversal of 25087224440 is 4442278052.

It is a junction number, because it is equal to n+sod(n) for n = 25087224394 and 25087224403.

It is a congruent number.

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, 313590266 + ... + 313590345.

Almost surely, 2^25087224440 is an apocalyptic number.

25087224440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25087224440 is an abundant number, since it is smaller than the sum of its proper divisors (31359030640).

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

25087224440 is a wasteful number, since it uses less digits than its factorization.

25087224440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627180622 (or 627180618 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 38.

The spelling of 25087224440 in words is "twenty-five billion, eighty-seven million, two hundred twenty-four thousand, four hundred forty".