52442520 has 64 divisors (see below), whose sum is σ = 169434720. Its totient is φ = 12908544.

The previous prime is 52442503. The next prime is 52442521. The reversal of 52442520 is 2524425.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52442521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15249 + ... + 18368.

Almost surely, 2^52442520 is an apocalyptic number.

It is an amenable number.

52442520 is an abundant number, since it is smaller than the sum of its proper divisors (116992200).

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

52442520 is a wasteful number, since it uses less digits than its factorization.

52442520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33644 (or 33640 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 52442520 is about 7241.7207899780. The cubic root of 52442520 is about 374.3069153679.

Adding to 52442520 its reverse (2524425), we get a palindrome (54966945).

The spelling of 52442520 in words is "fifty-two million, four hundred forty-two thousand, five hundred twenty".