52057320 has 128 divisors (see below), whose sum is σ = 184723200. Its totient is φ = 11483136.

The previous prime is 52057309. The next prime is 52057361. The reversal of 52057320 is 2375025.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23292 + ... + 25428.

It is an arithmetic number, because the mean of its divisors is an integer number (1443150).

Almost surely, 2^52057320 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 52057320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92361600).

52057320 is an abundant number, since it is smaller than the sum of its proper divisors (132665880).

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

52057320 is a wasteful number, since it uses less digits than its factorization.

52057320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2187 (or 2183 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 24.

The square root of 52057320 is about 7215.0758831768. The cubic root of 52057320 is about 373.3882111789.

The spelling of 52057320 in words is "fifty-two million, fifty-seven thousand, three hundred twenty".