56651810854 has 16 divisors (see below), whose sum is σ = 91060463088. Its totient is φ = 26338473472.

The previous prime is 56651810821. The next prime is 56651810861. The reversal of 56651810854 is 45801815665.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 56651810798 and 56651810807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10034707 + ... + 10040350.

It is an arithmetic number, because the mean of its divisors is an integer number (5691278943).

Almost surely, 2^56651810854 is an apocalyptic number.

56651810854 is a deficient number, since it is larger than the sum of its proper divisors (34408652234).

56651810854 is a wasteful number, since it uses less digits than its factorization.

56651810854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20075159.

The product of its (nonzero) digits is 1152000, while the sum is 49.

The spelling of 56651810854 in words is "fifty-six billion, six hundred fifty-one million, eight hundred ten thousand, eight hundred fifty-four".