51274874 has 12 divisors (see below), whose sum is σ = 89469594. Its totient is φ = 21974904.

The previous prime is 51274849. The next prime is 51274921. The reversal of 51274874 is 47847215.

51274874 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 27196225 + 24078649 = 5215^2 + 4907^2 .

It is a super-2 number, since 2×51274874² = 5258225407431752, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 261509 + ... + 261704.

Almost surely, 2^51274874 is an apocalyptic number.

51274874 is a deficient number, since it is larger than the sum of its proper divisors (38194720).

51274874 is a wasteful number, since it uses less digits than its factorization.

51274874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523229 (or 523222 counting only the distinct ones).

The product of its digits is 62720, while the sum is 38.

The square root of 51274874 is about 7160.6475964119. The cubic root of 51274874 is about 371.5080259861.

It can be divided in two parts, 5127 and 4874, that added together give a palindrome (10001).

The spelling of 51274874 in words is "fifty-one million, two hundred seventy-four thousand, eight hundred seventy-four".