252051313220 has 48 divisors (see below), whose sum is σ = 604992622080. Its totient is φ = 86407668864.

The previous prime is 252051313219. The next prime is 252051313231. The reversal of 252051313220 is 22313150252.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 252051313220.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1176437 + ... + 1374083.

It is an arithmetic number, because the mean of its divisors is an integer number (12604012960).

Almost surely, 2^252051313220 is an apocalyptic number.

252051313220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252051313220 is an abundant number, since it is smaller than the sum of its proper divisors (352941308860).

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

252051313220 is a wasteful number, since it uses less digits than its factorization.

252051313220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206772 (or 206770 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 252051313220 its reverse (22313150252), we get a palindrome (274364463472).

The spelling of 252051313220 in words is "two hundred fifty-two billion, fifty-one million, three hundred thirteen thousand, two hundred twenty".