252013464520 has 32 divisors (see below), whose sum is σ = 574797840120. Its totient is φ = 99424488960.

The previous prime is 252013464511. The next prime is 252013464533. The reversal of 252013464520 is 25464310252.

252013464520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 155666546116 + 96346918404 = 394546^2 + 310398^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43150071 + ... + 43155910.

Almost surely, 2^252013464520 is an apocalyptic number.

252013464520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252013464520 is an abundant number, since it is smaller than the sum of its proper divisors (322784375600).

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

252013464520 is a wasteful number, since it uses less digits than its factorization.

252013464520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86306065 (or 86306061 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 34.

Adding to 252013464520 its reverse (25464310252), we get a palindrome (277477774772).

The spelling of 252013464520 in words is "two hundred fifty-two billion, thirteen million, four hundred sixty-four thousand, five hundred twenty".