52521366 has 16 divisors (see below), whose sum is σ = 106765488. Its totient is φ = 17220000.

The previous prime is 52521353. The next prime is 52521373. The reversal of 52521366 is 66312525.

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, 71385 + ... + 72116.

It is an arithmetic number, because the mean of its divisors is an integer number (6672843).

Almost surely, 2^52521366 is an apocalyptic number.

52521366 is an abundant number, since it is smaller than the sum of its proper divisors (54244122).

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

52521366 is a wasteful number, since it uses less digits than its factorization.

52521366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143567.

The product of its digits is 10800, while the sum is 30.

The square root of 52521366 is about 7247.1626171903. The cubic root of 52521366 is about 374.4944084232.

The spelling of 52521366 in words is "fifty-two million, five hundred twenty-one thousand, three hundred sixty-six".