52209906 has 16 divisors (see below), whose sum is σ = 119337024. Its totient is φ = 14917104.

The previous prime is 52209893. The next prime is 52209917. The reversal of 52209906 is 60990225.

52209906 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 621505 + ... + 621588.

It is an arithmetic number, because the mean of its divisors is an integer number (7458564).

Almost surely, 2^52209906 is an apocalyptic number.

52209906 is an abundant number, since it is smaller than the sum of its proper divisors (67127118).

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

52209906 is a wasteful number, since it uses less digits than its factorization.

52209906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1243105.

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 52209906 is about 7225.6422551909. The cubic root of 52209906 is about 373.7526699361.

The spelling of 52209906 in words is "fifty-two million, two hundred nine thousand, nine hundred six".