51000505555476 has 24 divisors (see below), whose sum is σ = 121768648924384. Its totient is φ = 16604815762080.

The previous prime is 51000505555463. The next prime is 51000505555561. The reversal of 51000505555476 is 67455550500015.

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, 49419094015 + ... + 49419095046.

Almost surely, 2^{51000505555476} is an apocalyptic number.

It is an amenable number.

51000505555476 is an abundant number, since it is smaller than the sum of its proper divisors (70768143368908).

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

51000505555476 is a wasteful number, since it uses less digits than its factorization.

51000505555476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98838189111 (or 98838189109 counting only the distinct ones).

The product of its (nonzero) digits is 2625000, while the sum is 48.

The spelling of 51000505555476 in words is "fifty-one trillion, five hundred five million, five hundred fifty-five thousand, four hundred seventy-six".