52640806 has 16 divisors (see below), whose sum is σ = 84175200. Its totient is φ = 24603520.

The previous prime is 52640801. The next prime is 52640827. The reversal of 52640806 is 60804625.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52640801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130 + ... + 10261.

It is an arithmetic number, because the mean of its divisors is an integer number (5260950).

Almost surely, 2^52640806 is an apocalyptic number.

52640806 is a deficient number, since it is larger than the sum of its proper divisors (31534394).

52640806 is a wasteful number, since it uses less digits than its factorization.

52640806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10559.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 52640806 is about 7255.3984039472. The cubic root of 52640806 is about 374.7780755061.

The spelling of 52640806 in words is "fifty-two million, six hundred forty thousand, eight hundred six".