52990806 has 32 divisors (see below), whose sum is σ = 115920000. Its totient is φ = 16015680.

The previous prime is 52990799. The next prime is 52990837. The reversal of 52990806 is 60809925.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32130 + ... + 33738.

It is an arithmetic number, because the mean of its divisors is an integer number (3622500).

Almost surely, 2^52990806 is an apocalyptic number.

52990806 is an abundant number, since it is smaller than the sum of its proper divisors (62929194).

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

52990806 is a wasteful number, since it uses less digits than its factorization.

52990806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2124.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 52990806 is about 7279.4784153811. The cubic root of 52990806 is about 375.6068538571.

The spelling of 52990806 in words is "fifty-two million, nine hundred ninety thousand, eight hundred six".