25295699052 has 72 divisors (see below), whose sum is σ = 71081861760. Its totient is φ = 7532213760.

The previous prime is 25295699003. The next prime is 25295699059. The reversal of 25295699052 is 25099659252.

25295699052 is a `hidden beast` number, since 2 + 5 + 29 + 569 + 9 + 0 + 52 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 25295699052.

It is not an unprimeable number, because it can be changed into a prime (25295699059) 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, 857277 + ... + 886292.

It is an arithmetic number, because the mean of its divisors is an integer number (987248080).

Almost surely, 2^25295699052 is an apocalyptic number.

It is an amenable number.

25295699052 is an abundant number, since it is smaller than the sum of its proper divisors (45786162708).

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

25295699052 is a wasteful number, since it uses less digits than its factorization.

25295699052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1743623 (or 1743618 counting only the distinct ones).

The product of its (nonzero) digits is 4374000, while the sum is 54.

The spelling of 25295699052 in words is "twenty-five billion, two hundred ninety-five million, six hundred ninety-nine thousand, fifty-two".