25425510252 has 12 divisors (see below), whose sum is σ = 59326190616. Its totient is φ = 8475170080.

The previous prime is 25425510251. The next prime is 25425510289. The reversal of 25425510252 is 25201552452.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (25425510251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1059396249 + ... + 1059396272.

It is an arithmetic number, because the mean of its divisors is an integer number (4943849218).

Almost surely, 2^25425510252 is an apocalyptic number.

It is an amenable number.

25425510252 is an abundant number, since it is smaller than the sum of its proper divisors (33900680364).

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

25425510252 is a wasteful number, since it uses less digits than its factorization.

25425510252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2118792528 (or 2118792526 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 33.

The spelling of 25425510252 in words is "twenty-five billion, four hundred twenty-five million, five hundred ten thousand, two hundred fifty-two".