52503666 has 16 divisors (see below), whose sum is σ = 107845824. Its totient is φ = 17028144.

The previous prime is 52503623. The next prime is 52503683. The reversal of 52503666 is 66630525.

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, 118030 + ... + 118473.

It is an arithmetic number, because the mean of its divisors is an integer number (6740364).

Almost surely, 2^52503666 is an apocalyptic number.

52503666 is an abundant number, since it is smaller than the sum of its proper divisors (55342158).

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

52503666 is a wasteful number, since it uses less digits than its factorization.

52503666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236545.

The product of its (nonzero) digits is 32400, while the sum is 33.

The square root of 52503666 is about 7245.9413467127. The cubic root of 52503666 is about 374.4523347791.

The spelling of 52503666 in words is "fifty-two million, five hundred three thousand, six hundred sixty-six".