52756224 has 72 divisors (see below), whose sum is σ = 142483152. Its totient is φ = 17326080.

The previous prime is 52756213. The next prime is 52756237. The reversal of 52756224 is 42265725.

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, 55594 + ... + 56534.

Almost surely, 2^52756224 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 52756224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71241576).

52756224 is an abundant number, since it is smaller than the sum of its proper divisors (89726928).

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

52756224 is an equidigital number, since it uses as much as digits as its factorization.

52756224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1033 (or 1019 counting only the distinct ones).

The product of its digits is 33600, while the sum is 33.

The square root of 52756224 is about 7263.3479883591. The cubic root of 52756224 is about 375.0517830713.

The spelling of 52756224 in words is "fifty-two million, seven hundred fifty-six thousand, two hundred twenty-four".