52371720 has 48 divisors (see below), whose sum is σ = 170209260. Its totient is φ = 13965696.

The previous prime is 52371673. The next prime is 52371727. The reversal of 52371720 is 2717325.

52371720 is a `hidden beast` number, since 523 + 71 + 72 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 49196196 + 3175524 = 7014^2 + 1782^2 .

It is not an unprimeable number, because it can be changed into a prime (52371727) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72379 + ... + 73098.

Almost surely, 2^52371720 is an apocalyptic number.

It is an amenable number.

52371720 is an abundant number, since it is smaller than the sum of its proper divisors (117837540).

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

52371720 is a wasteful number, since it uses less digits than its factorization.

52371720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145494 (or 145487 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The square root of 52371720 is about 7236.8307980773. The cubic root of 52371720 is about 374.1383952153.

The spelling of 52371720 in words is "fifty-two million, three hundred seventy-one thousand, seven hundred twenty".