252522030520 has 32 divisors (see below), whose sum is σ = 580263393600. Its totient is φ = 98859687808.

The previous prime is 252522030511. The next prime is 252522030529. The reversal of 252522030520 is 25030225252.

It is an interprime number because it is at equal distance from previous prime (252522030511) and next prime (252522030529).

It is a super-2 number, since 2×252522030520² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252522030529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67158235 + ... + 67161994.

It is an arithmetic number, because the mean of its divisors is an integer number (18133231050).

Almost surely, 2^252522030520 is an apocalyptic number.

252522030520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252522030520 is an abundant number, since it is smaller than the sum of its proper divisors (327741363080).

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

252522030520 is a wasteful number, since it uses less digits than its factorization.

252522030520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134320287 (or 134320283 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 28.

Adding to 252522030520 its reverse (25030225252), we get a palindrome (277552255772).

The spelling of 252522030520 in words is "two hundred fifty-two billion, five hundred twenty-two million, thirty thousand, five hundred twenty".