25316512212 has 48 divisors (see below), whose sum is σ = 60383941632. Its totient is φ = 8251726560.

The previous prime is 25316512189. The next prime is 25316512223. The reversal of 25316512212 is 21221561352.

It is a self number, because there is not a number n which added to its sum of digits gives 25316512212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 613387 + ... + 653357.

It is an arithmetic number, because the mean of its divisors is an integer number (1257998784).

Almost surely, 2^25316512212 is an apocalyptic number.

It is an amenable number.

25316512212 is an abundant number, since it is smaller than the sum of its proper divisors (35067429420).

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

25316512212 is a wasteful number, since it uses less digits than its factorization.

25316512212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41148 (or 41146 counting only the distinct ones).

The product of its digits is 7200, while the sum is 30.

The spelling of 25316512212 in words is "twenty-five billion, three hundred sixteen million, five hundred twelve thousand, two hundred twelve".