51775572 has 24 divisors (see below), whose sum is σ = 122169600. Its totient is φ = 17064256.

The previous prime is 51775567. The next prime is 51775609. The reversal of 51775572 is 27557715.

It is a self number, because there is not a number n which added to its sum of digits gives 51775572.

It is a congruent number.

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, 23172 + ... + 25307.

It is an arithmetic number, because the mean of its divisors is an integer number (5090400).

Almost surely, 2^51775572 is an apocalyptic number.

It is an amenable number.

51775572 is an abundant number, since it is smaller than the sum of its proper divisors (70394028).

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

51775572 is a wasteful number, since it uses less digits than its factorization.

51775572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48575 (or 48573 counting only the distinct ones).

The product of its digits is 85750, while the sum is 39.

The square root of 51775572 is about 7195.5244423183. The cubic root of 51775572 is about 372.7133669429.

The spelling of 51775572 in words is "fifty-one million, seven hundred seventy-five thousand, five hundred seventy-two".