51274372 has 24 divisors (see below), whose sum is σ = 93139200. Its totient is φ = 24672480.

The previous prime is 51274253. The next prime is 51274381. The reversal of 51274372 is 27347215.

It is a super-2 number, since 2×51274372² = 5258122447988768, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

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, 23379 + ... + 25477.

It is an arithmetic number, because the mean of its divisors is an integer number (3880800).

Almost surely, 2^51274372 is an apocalyptic number.

It is an amenable number.

51274372 is a deficient number, since it is larger than the sum of its proper divisors (41864828).

51274372 is a wasteful number, since it uses less digits than its factorization.

51274372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2331 (or 2329 counting only the distinct ones).

The product of its digits is 11760, while the sum is 31.

The square root of 51274372 is about 7160.6125436306. The cubic root of 51274372 is about 371.5068135818.

The spelling of 51274372 in words is "fifty-one million, two hundred seventy-four thousand, three hundred seventy-two".