51582642 has 16 divisors (see below), whose sum is σ = 103289472. Its totient is φ = 17173520.

The previous prime is 51582617. The next prime is 51582659. The reversal of 51582642 is 24628515.

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, 748 + ... + 10184.

It is an arithmetic number, because the mean of its divisors is an integer number (6455592).

Almost surely, 2^51582642 is an apocalyptic number.

51582642 is an abundant number, since it is smaller than the sum of its proper divisors (51706830).

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

51582642 is a wasteful number, since it uses less digits than its factorization.

51582642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10353.

The product of its digits is 19200, while the sum is 33.

The square root of 51582642 is about 7182.1056800913. The cubic root of 51582642 is about 372.2498466103.

The spelling of 51582642 in words is "fifty-one million, five hundred eighty-two thousand, six hundred forty-two".