52979388 has 72 divisors (see below), whose sum is σ = 156893184. Its totient is φ = 13759200.

The previous prime is 52979359. The next prime is 52979411. The reversal of 52979388 is 88397925.

52979388 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 52979388.

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 23 ways as a sum of consecutive naturals, for example, 2373 + ... + 10563.

It is an arithmetic number, because the mean of its divisors is an integer number (2179072).

Almost surely, 2^52979388 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52979388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78446592).

52979388 is an abundant number, since it is smaller than the sum of its proper divisors (103913796).

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

52979388 is a wasteful number, since it uses less digits than its factorization.

52979388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8223 (or 8214 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 51.

The square root of 52979388 is about 7278.6941136443. The cubic root of 52979388 is about 375.5798744151.

The spelling of 52979388 in words is "fifty-two million, nine hundred seventy-nine thousand, three hundred eighty-eight".