25504252875 has 24 divisors (see below), whose sum is σ = 45975668544. Its totient is φ = 13602267600.

The previous prime is 25504252861. The next prime is 25504252877. The reversal of 25504252875 is 57825240552.

25504252875 is a `hidden beast` number, since 2 + 5 + 50 + 4 + 2 + 528 + 75 = 666.

It is not a de Polignac number, because 25504252875 - 2⁷ = 25504252747 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 25504252875.

It is not an unprimeable number, because it can be changed into a prime (25504252877) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11334099 + ... + 11336348.

It is an arithmetic number, because the mean of its divisors is an integer number (1915652856).

Almost surely, 2^25504252875 is an apocalyptic number.

25504252875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25504252875 is a deficient number, since it is larger than the sum of its proper divisors (20471415669).

25504252875 is a wasteful number, since it uses less digits than its factorization.

25504252875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22670468 (or 22670455 counting only the distinct ones).

The product of its (nonzero) digits is 1120000, while the sum is 45.

The spelling of 25504252875 in words is "twenty-five billion, five hundred four million, two hundred fifty-two thousand, eight hundred seventy-five".