51620424522 has 16 divisors (see below), whose sum is σ = 105188790240. Its totient is φ = 16882151312.

The previous prime is 51620424497. The next prime is 51620424551. The reversal of 51620424522 is 22542402615.

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, 81163872 + ... + 81164507.

It is an arithmetic number, because the mean of its divisors is an integer number (6574299390).

Almost surely, 2^51620424522 is an apocalyptic number.

51620424522 is an abundant number, since it is smaller than the sum of its proper divisors (53568365718).

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

51620424522 is a wasteful number, since it uses less digits than its factorization.

51620424522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162328437.

The product of its (nonzero) digits is 38400, while the sum is 33.

The spelling of 51620424522 in words is "fifty-one billion, six hundred twenty million, four hundred twenty-four thousand, five hundred twenty-two".