52218560 has 112 divisors (see below), whose sum is σ = 136611360. Its totient is φ = 18923520.

The previous prime is 52218557. The next prime is 52218587. The reversal of 52218560 is 6581225.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157595 + ... + 157925.

Almost surely, 2^52218560 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 52218560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68305680).

52218560 is an abundant number, since it is smaller than the sum of its proper divisors (84392800).

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

52218560 is a wasteful number, since it uses less digits than its factorization.

52218560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394 (or 384 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 52218560 is about 7226.2410698786. The cubic root of 52218560 is about 373.7733191268.

Adding to 52218560 its reverse (6581225), we get a palindrome (58799785).

The spelling of 52218560 in words is "fifty-two million, two hundred eighteen thousand, five hundred sixty".