52921885 has 4 divisors (see below), whose sum is σ = 63506268. Its totient is φ = 42337504.

The previous prime is 52921853. The next prime is 52921903. The reversal of 52921885 is 58812925.

52921885 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 40678884 + 12243001 = 6378^2 + 3499^2 .

It is a cyclic number.

It is not a de Polignac number, because 52921885 - 2⁵ = 52921853 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 5292184 + ... + 5292193.

It is an arithmetic number, because the mean of its divisors is an integer number (15876567).

Almost surely, 2^52921885 is an apocalyptic number.

It is an amenable number.

52921885 is a deficient number, since it is larger than the sum of its proper divisors (10584383).

52921885 is a wasteful number, since it uses less digits than its factorization.

52921885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10584382.

The product of its digits is 57600, while the sum is 40.

The square root of 52921885 is about 7274.7429507853. The cubic root of 52921885 is about 375.4439423812.

The spelling of 52921885 in words is "fifty-two million, nine hundred twenty-one thousand, eight hundred eighty-five".