52508172 has 144 divisors (see below), whose sum is σ = 147474432. Its totient is φ = 14446080.

The previous prime is 52508161. The next prime is 52508173. The reversal of 52508172 is 27180525.

It is not an unprimeable number, because it can be changed into a prime (52508173) 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, 1693797 + ... + 1693827.

It is an arithmetic number, because the mean of its divisors is an integer number (1024128).

Almost surely, 2^52508172 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 52508172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73737216).

52508172 is an abundant number, since it is smaller than the sum of its proper divisors (94966260).

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

52508172 is a wasteful number, since it uses less digits than its factorization.

52508172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116 (or 95 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 30.

The square root of 52508172 is about 7246.2522727269. The cubic root of 52508172 is about 374.4630466276.

Adding to 52508172 its reverse (27180525), we get a palindrome (79688697).

The spelling of 52508172 in words is "fifty-two million, five hundred eight thousand, one hundred seventy-two".