51684674 has 16 divisors (see below), whose sum is σ = 81751680. Its totient is φ = 24438960.

The previous prime is 51684623. The next prime is 51684683. The reversal of 51684674 is 47648615.

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, 33872 + ... + 35364.

It is an arithmetic number, because the mean of its divisors is an integer number (5109480).

Almost surely, 2^51684674 is an apocalyptic number.

51684674 is a deficient number, since it is larger than the sum of its proper divisors (30067006).

51684674 is a wasteful number, since it uses less digits than its factorization.

51684674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2425.

The product of its digits is 161280, while the sum is 41.

The square root of 51684674 is about 7189.2053802906. The cubic root of 51684674 is about 372.4951253810.

The spelling of 51684674 in words is "fifty-one million, six hundred eighty-four thousand, six hundred seventy-four".