52521867 has 12 divisors (see below), whose sum is σ = 76116040. Its totient is φ = 34898688.

The previous prime is 52521851. The next prime is 52521869. The reversal of 52521867 is 76812525.

It is a happy number.

52521867 is a `hidden beast` number, since 52 + 521 + 86 + 7 = 666.

52521867 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 52521867 - 2⁴ = 52521851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52521869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6742 + ... + 12267.

Almost surely, 2^52521867 is an apocalyptic number.

52521867 is a deficient number, since it is larger than the sum of its proper divisors (23594173).

52521867 is a wasteful number, since it uses less digits than its factorization.

52521867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19322 (or 19319 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 52521867 is about 7247.1971823595. The cubic root of 52521867 is about 374.4955991837.

The spelling of 52521867 in words is "fifty-two million, five hundred twenty-one thousand, eight hundred sixty-seven".