51791572 has 12 divisors (see below), whose sum is σ = 103583200. Its totient is φ = 22196376.

The previous prime is 51791533. The next prime is 51791599. The reversal of 51791572 is 27519715.

51791572 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 924822 + ... + 924877.

Almost surely, 2^51791572 is an apocalyptic number.

It is an amenable number.

51791572 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

51791572 is a wasteful number, since it uses less digits than its factorization.

51791572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1849710 (or 1849708 counting only the distinct ones).

The product of its digits is 22050, while the sum is 37.

The square root of 51791572 is about 7196.6361586508. The cubic root of 51791572 is about 372.7517557007.

The spelling of 51791572 in words is "fifty-one million, seven hundred ninety-one thousand, five hundred seventy-two".