52642720 has 48 divisors (see below), whose sum is σ = 133940520. Its totient is φ = 19436544.

The previous prime is 52642703. The next prime is 52642757. The reversal of 52642720 is 2724625.

It can be written as a sum of positive squares in 4 ways, for example, as 35569296 + 17073424 = 5964^2 + 4132^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10575 + ... + 14734.

Almost surely, 2^52642720 is an apocalyptic number.

It is an amenable number.

52642720 is an abundant number, since it is smaller than the sum of its proper divisors (81297800).

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

52642720 is a wasteful number, since it uses less digits than its factorization.

52642720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25337 (or 25329 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 52642720 is about 7255.5303045332. The cubic root of 52642720 is about 374.7826177146.

The spelling of 52642720 in words is "fifty-two million, six hundred forty-two thousand, seven hundred twenty".