51732886 has 4 divisors (see below), whose sum is σ = 77599332. Its totient is φ = 25866442.

The previous prime is 51732871. The next prime is 51732899. The reversal of 51732886 is 68823715.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12933220 + ... + 12933223.

It is an arithmetic number, because the mean of its divisors is an integer number (19399833).

Almost surely, 2^51732886 is an apocalyptic number.

51732886 is a deficient number, since it is larger than the sum of its proper divisors (25866446).

51732886 is a wasteful number, since it uses less digits than its factorization.

51732886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25866445.

The product of its digits is 80640, while the sum is 40.

The square root of 51732886 is about 7192.5576813815. The cubic root of 51732886 is about 372.6109118251.

The spelling of 51732886 in words is "fifty-one million, seven hundred thirty-two thousand, eight hundred eighty-six".