252333540220 has 24 divisors (see below), whose sum is σ = 546993998208. Its totient is φ = 97677499200.

The previous prime is 252333540181. The next prime is 252333540301. The reversal of 252333540220 is 22045333252.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (31).

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, 203494171 + ... + 203495410.

It is an arithmetic number, because the mean of its divisors is an integer number (22791416592).

Almost surely, 2^252333540220 is an apocalyptic number.

252333540220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252333540220 is an abundant number, since it is smaller than the sum of its proper divisors (294660457988).

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

252333540220 is a wasteful number, since it uses less digits than its factorization.

252333540220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406989621 (or 406989619 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 31.

Adding to 252333540220 its reverse (22045333252), we get a palindrome (274378873472).

The spelling of 252333540220 in words is "two hundred fifty-two billion, three hundred thirty-three million, five hundred forty thousand, two hundred twenty".