25045540212 has 96 divisors (see below), whose sum is σ = 75210153984. Its totient is φ = 6295478400.

The previous prime is 25045540199. The next prime is 25045540231. The reversal of 25045540212 is 21204554052.

It is a self number, because there is not a number n which added to its sum of digits gives 25045540212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 408543 + ... + 465830.

It is an arithmetic number, because the mean of its divisors is an integer number (783439104).

Almost surely, 2^25045540212 is an apocalyptic number.

25045540212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

25045540212 is an abundant number, since it is smaller than the sum of its proper divisors (50164613772).

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

25045540212 is a wasteful number, since it uses less digits than its factorization.

25045540212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 874429 (or 874427 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 30.

The spelling of 25045540212 in words is "twenty-five billion, forty-five million, five hundred forty thousand, two hundred twelve".