51515624274 has 16 divisors (see below), whose sum is σ = 108453946080. Its totient is φ = 16268091840.

The previous prime is 51515624243. The next prime is 51515624309. The reversal of 51515624274 is 47242651515.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225945607 + ... + 225945834.

It is an arithmetic number, because the mean of its divisors is an integer number (6778371630).

Almost surely, 2^51515624274 is an apocalyptic number.

51515624274 is an abundant number, since it is smaller than the sum of its proper divisors (56938321806).

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

51515624274 is a wasteful number, since it uses less digits than its factorization.

51515624274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451891465.

The product of its digits is 336000, while the sum is 42.

The spelling of 51515624274 in words is "fifty-one billion, five hundred fifteen million, six hundred twenty-four thousand, two hundred seventy-four".