52539660 has 36 divisors (see below), whose sum is σ = 159370848. Its totient is φ = 14010528.

The previous prime is 52539653. The next prime is 52539691. The reversal of 52539660 is 6693525.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 145764 + ... + 146123.

It is an arithmetic number, because the mean of its divisors is an integer number (4426968).

Almost surely, 2^52539660 is an apocalyptic number.

It is an amenable number.

52539660 is an abundant number, since it is smaller than the sum of its proper divisors (106831188).

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

52539660 is a wasteful number, since it uses less digits than its factorization.

52539660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291902 (or 291897 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 36.

The square root of 52539660 is about 7248.4246564340. The cubic root of 52539660 is about 374.5378840976.

The spelling of 52539660 in words is "fifty-two million, five hundred thirty-nine thousand, six hundred sixty".