25807959252 has 36 divisors (see below), whose sum is σ = 66624806976. Its totient is φ = 8419617360.

The previous prime is 25807959251. The next prime is 25807959253. The reversal of 25807959252 is 25295970852.

It is a happy number.

25807959252 is a `hidden beast` number, since 2 + 580 + 7 + 9 + 5 + 9 + 2 + 52 = 666.

It is an interprime number because it is at equal distance from previous prime (25807959251) and next prime (25807959253).

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25807959251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7624774 + ... + 7628157.

Almost surely, 2^25807959252 is an apocalyptic number.

It is an amenable number.

25807959252 is an abundant number, since it is smaller than the sum of its proper divisors (40816847724).

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

25807959252 is a wasteful number, since it uses less digits than its factorization.

25807959252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15252988 (or 15252983 counting only the distinct ones).

The product of its (nonzero) digits is 4536000, while the sum is 54.

The spelling of 25807959252 in words is "twenty-five billion, eight hundred seven million, nine hundred fifty-nine thousand, two hundred fifty-two".