51389682 has 32 divisors (see below), whose sum is σ = 110954880. Its totient is φ = 15818880.

The previous prime is 51389677. The next prime is 51389719. The reversal of 51389682 is 28698315.

It is a super-2 number, since 2×51389682² = 5281798832122248, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2419 + ... + 10422.

It is an arithmetic number, because the mean of its divisors is an integer number (3467340).

Almost surely, 2^51389682 is an apocalyptic number.

51389682 is an abundant number, since it is smaller than the sum of its proper divisors (59565198).

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

51389682 is a wasteful number, since it uses less digits than its factorization.

51389682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12898.

The product of its digits is 103680, while the sum is 42.

The square root of 51389682 is about 7168.6597073651. The cubic root of 51389682 is about 371.7850967097.

The spelling of 51389682 in words is "fifty-one million, three hundred eighty-nine thousand, six hundred eighty-two".