52398520 has 16 divisors (see below), whose sum is σ = 117896760. Its totient is φ = 20959392.

The previous prime is 52398517. The next prime is 52398551. The reversal of 52398520 is 2589325.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 654942 + ... + 655021.

Almost surely, 2^52398520 is an apocalyptic number.

It is an amenable number.

52398520 is an abundant number, since it is smaller than the sum of its proper divisors (65498240).

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

52398520 is a wasteful number, since it uses less digits than its factorization.

52398520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1309974 (or 1309970 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 52398520 is about 7238.6822005114. The cubic root of 52398520 is about 374.2022031835.

The spelling of 52398520 in words is "fifty-two million, three hundred ninety-eight thousand, five hundred twenty".