25211211252 has 12 divisors (see below), whose sum is σ = 58826159616. Its totient is φ = 8403737080.

The previous prime is 25211211229. The next prime is 25211211271.

25211211252 is nontrivially palindromic in base 10.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1050467124 + ... + 1050467147.

It is an arithmetic number, because the mean of its divisors is an integer number (4902179968).

Almost surely, 2^25211211252 is an apocalyptic number.

It is an amenable number.

25211211252 is an abundant number, since it is smaller than the sum of its proper divisors (33614948364).

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

25211211252 is a wasteful number, since it uses less digits than its factorization.

25211211252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2100934278 (or 2100934276 counting only the distinct ones).

The product of its digits is 800, while the sum is 24.

The spelling of 25211211252 in words is "twenty-five billion, two hundred eleven million, two hundred eleven thousand, two hundred fifty-two".