52351920 has 120 divisors (see below), whose sum is σ = 182394576. Its totient is φ = 13955328.

The previous prime is 52351909. The next prime is 52352017. The reversal of 52351920 is 2915325.

52351920 is a `hidden beast` number, since 523 + 51 + 92 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18094 + ... + 20786.

Almost surely, 2^52351920 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52351920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91197288).

52351920 is an abundant number, since it is smaller than the sum of its proper divisors (130042656).

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

52351920 is a wasteful number, since it uses less digits than its factorization.

52351920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2721 (or 2703 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 52351920 is about 7235.4626666164. The cubic root of 52351920 is about 374.0912395240.

The spelling of 52351920 in words is "fifty-two million, three hundred fifty-one thousand, nine hundred twenty".