51925872 has 20 divisors (see below), whose sum is σ = 134141960. Its totient is φ = 17308608.

The previous prime is 51925843. The next prime is 51925883. The reversal of 51925872 is 27852915.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 51925872.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 540847 + ... + 540942.

It is an arithmetic number, because the mean of its divisors is an integer number (6707098).

Almost surely, 2^51925872 is an apocalyptic number.

It is an amenable number.

51925872 is an abundant number, since it is smaller than the sum of its proper divisors (82216088).

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

51925872 is a wasteful number, since it uses less digits than its factorization.

51925872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081800 (or 1081794 counting only the distinct ones).

The product of its digits is 50400, while the sum is 39.

The square root of 51925872 is about 7205.9608658388. The cubic root of 51925872 is about 373.0736700627.

The spelling of 51925872 in words is "fifty-one million, nine hundred twenty-five thousand, eight hundred seventy-two".