52665906 has 16 divisors (see below), whose sum is σ = 109911744. Its totient is φ = 16791984.

The previous prime is 52665901. The next prime is 52665913. The reversal of 52665906 is 60956625.

52665906 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (52665901) by changing a digit.

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, 190681 + ... + 190956.

It is an arithmetic number, because the mean of its divisors is an integer number (6869484).

Almost surely, 2^52665906 is an apocalyptic number.

52665906 is an abundant number, since it is smaller than the sum of its proper divisors (57245838).

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

52665906 is a wasteful number, since it uses less digits than its factorization.

52665906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381665.

The product of its (nonzero) digits is 97200, while the sum is 39.

The square root of 52665906 is about 7257.1279443041. The cubic root of 52665906 is about 374.8376328197.

The spelling of 52665906 in words is "fifty-two million, six hundred sixty-five thousand, nine hundred six".