52138560 has 56 divisors (see below), whose sum is σ = 165542976. Its totient is φ = 13903360.

The previous prime is 52138547. The next prime is 52138561. The reversal of 52138560 is 6583125.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (52138561) 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, 26196 + ... + 28115.

Almost surely, 2^52138560 is an apocalyptic number.

It is an amenable number.

52138560 is an abundant number, since it is smaller than the sum of its proper divisors (113404416).

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

52138560 is a wasteful number, since it uses less digits than its factorization.

52138560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54331 (or 54321 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 52138560 is about 7220.7035668278. The cubic root of 52138560 is about 373.5823452110.

The spelling of 52138560 in words is "fifty-two million, one hundred thirty-eight thousand, five hundred sixty".