52257504 has 72 divisors (see below), whose sum is σ = 148585752. Its totient is φ = 16074240.

The previous prime is 52257479. The next prime is 52257509. The reversal of 52257504 is 40575225.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52257509) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14614 + ... + 17834.

It is an arithmetic number, because the mean of its divisors is an integer number (2063691).

Almost surely, 2^52257504 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 52257504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74292876).

52257504 is an abundant number, since it is smaller than the sum of its proper divisors (96328248).

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

52257504 is a wasteful number, since it uses less digits than its factorization.

52257504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3260 (or 3239 counting only the distinct ones).

The product of its (nonzero) digits is 14000, while the sum is 30.

The square root of 52257504 is about 7228.9351912989. The cubic root of 52257504 is about 373.8662146479.

The spelling of 52257504 in words is "fifty-two million, two hundred fifty-seven thousand, five hundred four".