52908813 has 12 divisors (see below), whose sum is σ = 76599900. Its totient is φ = 35191296.

The previous prime is 52908799. The next prime is 52908839. The reversal of 52908813 is 31880925.

52908813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 40985604 + 11923209 = 6402^2 + 3453^2 .

It is not a de Polignac number, because 52908813 - 2⁴ = 52908797 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52908313) 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 11 ways as a sum of consecutive naturals, for example, 2506 + ... + 10587.

It is an arithmetic number, because the mean of its divisors is an integer number (6383325).

Almost surely, 2^52908813 is an apocalyptic number.

It is an amenable number.

52908813 is a deficient number, since it is larger than the sum of its proper divisors (23691087).

52908813 is a wasteful number, since it uses less digits than its factorization.

52908813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13548 (or 13545 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 52908813 is about 7273.8444443087. The cubic root of 52908813 is about 375.4130275882.

The spelling of 52908813 in words is "fifty-two million, nine hundred eight thousand, eight hundred thirteen".