25087413645 has 96 divisors (see below), whose sum is σ = 52106655744. Its totient is φ = 10917244800.

The previous prime is 25087413623. The next prime is 25087413677. The reversal of 25087413645 is 54631478052.

25087413645 is a `hidden beast` number, since 2 + 508 + 7 + 4 + 136 + 4 + 5 = 666.

It is not a de Polignac number, because 25087413645 - 2⁵ = 25087413613 is a prime.

It is a super-3 number, since 3×25087413645³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 25087413645.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1520490 + ... + 1536900.

It is an arithmetic number, because the mean of its divisors is an integer number (542777664).

Almost surely, 2^25087413645 is an apocalyptic number.

It is an amenable number.

25087413645 is an abundant number, since it is smaller than the sum of its proper divisors (27019242099).

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

25087413645 is a wasteful number, since it uses less digits than its factorization.

25087413645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16663 (or 16660 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 45.

The spelling of 25087413645 in words is "twenty-five billion, eighty-seven million, four hundred thirteen thousand, six hundred forty-five".