252545243320 has 32 divisors (see below), whose sum is σ = 568280812320. Its totient is φ = 101008494720.

The previous prime is 252545243257. The next prime is 252545243359. The reversal of 252545243320 is 23342545252.

It is a self number, because there is not a number n which added to its sum of digits gives 252545243320.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133714 + ... + 723166.

It is an arithmetic number, because the mean of its divisors is an integer number (17758775385).

Almost surely, 2^252545243320 is an apocalyptic number.

252545243320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252545243320 is an abundant number, since it is smaller than the sum of its proper divisors (315735569000).

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

252545243320 is a wasteful number, since it uses less digits than its factorization.

252545243320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600175 (or 600171 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 37.

Adding to 252545243320 its reverse (23342545252), we get a palindrome (275887788572).

The spelling of 252545243320 in words is "two hundred fifty-two billion, five hundred forty-five million, two hundred forty-three thousand, three hundred twenty".