52516920 has 32 divisors (see below), whose sum is σ = 157551120. Its totient is φ = 14004480.

The previous prime is 52516897. The next prime is 52516939. The reversal of 52516920 is 2961525.

It is a happy number.

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

It is a congruent number.

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, 218701 + ... + 218940.

Almost surely, 2^52516920 is an apocalyptic number.

It is an amenable number.

52516920 is an abundant number, since it is smaller than the sum of its proper divisors (105034200).

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

52516920 is a wasteful number, since it uses less digits than its factorization.

52516920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437655 (or 437651 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 52516920 is about 7246.8558699618. The cubic root of 52516920 is about 374.4838409834.

The spelling of 52516920 in words is "fifty-two million, five hundred sixteen thousand, nine hundred twenty".