52521868 has 24 divisors (see below), whose sum is σ = 106013600. Its totient is φ = 22301568.

The previous prime is 52521851. The next prime is 52521869. The reversal of 52521868 is 86812525.

It is not an unprimeable number, because it can be changed into a prime (52521869) 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, 5553 + ... + 11656.

Almost surely, 2^52521868 is an apocalyptic number.

It is an amenable number.

52521868 is an abundant number, since it is smaller than the sum of its proper divisors (53491732).

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

52521868 is a wasteful number, since it uses less digits than its factorization.

52521868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17329 (or 17327 counting only the distinct ones).

The product of its digits is 38400, while the sum is 37.

The square root of 52521868 is about 7247.1972513517. The cubic root of 52521868 is about 374.4956015605.

The spelling of 52521868 in words is "fifty-two million, five hundred twenty-one thousand, eight hundred sixty-eight".