52215488 has 56 divisors (see below), whose sum is σ = 112910112. Its totient is φ = 23814144.

The previous prime is 52215479. The next prime is 52215491. The reversal of 52215488 is 88451225.

It is a happy number.

52215488 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 80381 + ... + 81027.

It is an arithmetic number, because the mean of its divisors is an integer number (2016252).

Almost surely, 2^52215488 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 52215488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56455056).

52215488 is an abundant number, since it is smaller than the sum of its proper divisors (60694624).

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

52215488 is a wasteful number, since it uses less digits than its factorization.

52215488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769 (or 759 counting only the distinct ones).

The product of its digits is 25600, while the sum is 35.

The square root of 52215488 is about 7226.0285081087. The cubic root of 52215488 is about 373.7659893310.

The spelling of 52215488 in words is "fifty-two million, two hundred fifteen thousand, four hundred eighty-eight".