52572520 has 192 divisors, whose sum is σ = 161274240. Its totient is φ = 14976000.

The previous prime is 52572493. The next prime is 52572521. The reversal of 52572520 is 2527525.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52572521) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 520470 + ... + 520570.

It is an arithmetic number, because the mean of its divisors is an integer number (839970).

Almost surely, 2^52572520 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 52572520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80637120).

52572520 is an abundant number, since it is smaller than the sum of its proper divisors (108701720).

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

52572520 is a wasteful number, since it uses less digits than its factorization.

52572520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 28.

The square root of 52572520 is about 7250.6910015529. The cubic root of 52572520 is about 374.6159505206.

It can be divided in two parts, 5257 and 2520, that added together give a palindrome (7777).

The spelling of 52572520 in words is "fifty-two million, five hundred seventy-two thousand, five hundred twenty".