2564402512 has 40 divisors (see below), whose sum is σ = 5831797376. Its totient is φ = 1069324416.

The previous prime is 2564402501. The next prime is 2564402513. The reversal of 2564402512 is 2152044652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2564402513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 305268 + ... + 313555.

Almost surely, 2^2564402512 is an apocalyptic number.

It is an amenable number.

2564402512 is an abundant number, since it is smaller than the sum of its proper divisors (3267394864).

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

2564402512 is a wasteful number, since it uses less digits than its factorization.

2564402512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618875 (or 618869 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

The square root of 2564402512 is about 50639.9300157494. The cubic root of 2564402512 is about 1368.7644946597.

The spelling of 2564402512 in words is "two billion, five hundred sixty-four million, four hundred two thousand, five hundred twelve".