52518912 has 56 divisors (see below), whose sum is σ = 140107416. Its totient is φ = 17498112.

The previous prime is 52518911. The next prime is 52518941. The reversal of 52518912 is 21981525.

It is a super-2 number, since 2×52518912² = 5516472235327488, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52518911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23508 + ... + 25644.

Almost surely, 2^52518912 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 52518912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70053708).

52518912 is an abundant number, since it is smaller than the sum of its proper divisors (87588504).

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

52518912 is an equidigital number, since it uses as much as digits as its factorization.

52518912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2166 (or 2142 counting only the distinct ones).

The product of its digits is 7200, while the sum is 33.

The square root of 52518912 is about 7246.9933075725. The cubic root of 52518912 is about 374.4885757265.

The spelling of 52518912 in words is "fifty-two million, five hundred eighteen thousand, nine hundred twelve".