252253242520 has 16 divisors (see below), whose sum is σ = 567569795760. Its totient is φ = 100901296992.

The previous prime is 252253242503. The next prime is 252253242529. The reversal of 252253242520 is 25242352252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252253242529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3153165492 + ... + 3153165571.

It is an arithmetic number, because the mean of its divisors is an integer number (35473112235).

Almost surely, 2^252253242520 is an apocalyptic number.

252253242520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252253242520 is an abundant number, since it is smaller than the sum of its proper divisors (315316553240).

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

252253242520 is a wasteful number, since it uses less digits than its factorization.

252253242520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6306331074 (or 6306331070 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 34.

Adding to 252253242520 its reverse (25242352252), we get a palindrome (277495594772).

The spelling of 252253242520 in words is "two hundred fifty-two billion, two hundred fifty-three million, two hundred forty-two thousand, five hundred twenty".