51532168 has 48 divisors (see below), whose sum is σ = 106099200. Its totient is φ = 23435520.

The previous prime is 51532153. The next prime is 51532171. The reversal of 51532168 is 86123515.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71313 + ... + 72031.

It is an arithmetic number, because the mean of its divisors is an integer number (2210400).

Almost surely, 2^51532168 is an apocalyptic number.

It is an amenable number.

51532168 is an abundant number, since it is smaller than the sum of its proper divisors (54567032).

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

51532168 is a wasteful number, since it uses less digits than its factorization.

51532168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790 (or 769 counting only the distinct ones).

The product of its digits is 7200, while the sum is 31.

The square root of 51532168 is about 7178.5909480900. The cubic root of 51532168 is about 372.1283905692.

The spelling of 51532168 in words is "fifty-one million, five hundred thirty-two thousand, one hundred sixty-eight".