25169250252 has 12 divisors (see below), whose sum is σ = 58728250616. Its totient is φ = 8389750080.

The previous prime is 25169250251. The next prime is 25169250283. The reversal of 25169250252 is 25205296152.

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

It is a self number, because there is not a number n which added to its sum of digits gives 25169250252.

It is not an unprimeable number, because it can be changed into a prime (25169250251) 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, 1048718749 + ... + 1048718772.

Almost surely, 2^25169250252 is an apocalyptic number.

It is an amenable number.

25169250252 is an abundant number, since it is smaller than the sum of its proper divisors (33559000364).

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

25169250252 is a wasteful number, since it uses less digits than its factorization.

25169250252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2097437528 (or 2097437526 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 39.

The spelling of 25169250252 in words is "twenty-five billion, one hundred sixty-nine million, two hundred fifty thousand, two hundred fifty-two".