52215580 has 24 divisors (see below), whose sum is σ = 110234880. Its totient is φ = 20775360.

The previous prime is 52215529. The next prime is 52215607. The reversal of 52215580 is 8551225.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3015 + ... + 10654.

It is an arithmetic number, because the mean of its divisors is an integer number (4593120).

Almost surely, 2^52215580 is an apocalyptic number.

It is an amenable number.

52215580 is an abundant number, since it is smaller than the sum of its proper divisors (58019300).

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

52215580 is a wasteful number, since it uses less digits than its factorization.

52215580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13869 (or 13867 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 28.

The square root of 52215580 is about 7226.0348739817. The cubic root of 52215580 is about 373.7662088473.

It can be divided in two parts, 5221 and 5580, that added together give a palindrome (10801).

The spelling of 52215580 in words is "fifty-two million, two hundred fifteen thousand, five hundred eighty".