252305010520 has 32 divisors (see below), whose sum is σ = 597564500400. Its totient is φ = 95610319488.

The previous prime is 252305010499. The next prime is 252305010521. The reversal of 252305010520 is 25010503252.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252305010521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165989379 + ... + 165990898.

Almost surely, 2^252305010520 is an apocalyptic number.

252305010520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252305010520 is an abundant number, since it is smaller than the sum of its proper divisors (345259489880).

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

252305010520 is a wasteful number, since it uses less digits than its factorization.

252305010520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331980307 (or 331980303 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

Adding to 252305010520 its reverse (25010503252), we get a palindrome (277315513772).

The spelling of 252305010520 in words is "two hundred fifty-two billion, three hundred five million, ten thousand, five hundred twenty".