56515001902 has 8 divisors (see below), whose sum is σ = 84830930712. Its totient is φ = 28238025000.

The previous prime is 56515001899. The next prime is 56515001927. The reversal of 56515001902 is 20910051565.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 9734349 + ... + 9740152.

It is an arithmetic number, because the mean of its divisors is an integer number (10603866339).

Almost surely, 2^56515001902 is an apocalyptic number.

56515001902 is a deficient number, since it is larger than the sum of its proper divisors (28315928810).

56515001902 is a wasteful number, since it uses less digits than its factorization.

56515001902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19475954.

The product of its (nonzero) digits is 13500, while the sum is 34.

The spelling of 56515001902 in words is "fifty-six billion, five hundred fifteen million, one thousand, nine hundred two".