51522622515 has 48 divisors (see below), whose sum is σ = 109914936768. Its totient is φ = 21741412608.

The previous prime is 51522622453. The next prime is 51522622523.

51522622515 is a `hidden beast` number, since 5 + 1 + 5 + 22 + 622 + 5 + 1 + 5 = 666.

51522622515 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 51522622515 - 2⁶ = 51522622451 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51522622515.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6286824 + ... + 6295013.

It is an arithmetic number, because the mean of its divisors is an integer number (2289894516).

Almost surely, 2^51522622515 is an apocalyptic number.

51522622515 is an abundant number, since it is smaller than the sum of its proper divisors (58392314253).

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

51522622515 is a wasteful number, since it uses less digits than its factorization.

51522622515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12581868 (or 12581865 counting only the distinct ones).

The product of its digits is 60000, while the sum is 36.

The spelling of 51522622515 in words is "fifty-one billion, five hundred twenty-two million, six hundred twenty-two thousand, five hundred fifteen".