51475755804 has 24 divisors (see below), whose sum is σ = 131029196928. Its totient is φ = 15598713840.

The previous prime is 51475755767. The next prime is 51475755817. The reversal of 51475755804 is 40855757415.

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, 194983792 + ... + 194984055.

It is an arithmetic number, because the mean of its divisors is an integer number (5459549872).

Almost surely, 2^51475755804 is an apocalyptic number.

It is an amenable number.

51475755804 is an abundant number, since it is smaller than the sum of its proper divisors (79553441124).

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

51475755804 is a wasteful number, since it uses less digits than its factorization.

51475755804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389967865 (or 389967863 counting only the distinct ones).

The product of its (nonzero) digits is 3920000, while the sum is 51.

The spelling of 51475755804 in words is "fifty-one billion, four hundred seventy-five million, seven hundred fifty-five thousand, eight hundred four".