51875520 has 56 divisors (see below), whose sum is σ = 164707824. Its totient is φ = 13833216.

The previous prime is 51875497. The next prime is 51875521. The reversal of 51875520 is 2557815.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (51875521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26059 + ... + 27978.

Almost surely, 2^51875520 is an apocalyptic number.

It is an amenable number.

51875520 is an abundant number, since it is smaller than the sum of its proper divisors (112832304).

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

51875520 is a wasteful number, since it uses less digits than its factorization.

51875520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54057 (or 54047 counting only the distinct ones).

The product of its (nonzero) digits is 14000, while the sum is 33.

The square root of 51875520 is about 7202.4662442805. The cubic root of 51875520 is about 372.9530424587.

The spelling of 51875520 in words is "fifty-one million, eight hundred seventy-five thousand, five hundred twenty".