252250442220 has 96 divisors (see below), whose sum is σ = 808116761088. Its totient is φ = 57591862272.

The previous prime is 252250442207. The next prime is 252250442221. The reversal of 252250442220 is 22244052252.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (252250442221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30772 + ... + 710948.

It is an arithmetic number, because the mean of its divisors is an integer number (8417882928).

Almost surely, 2^252250442220 is an apocalyptic number.

252250442220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 252250442220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (404058380544).

252250442220 is an abundant number, since it is smaller than the sum of its proper divisors (555866318868).

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

252250442220 is a wasteful number, since it uses less digits than its factorization.

252250442220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681079 (or 681077 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 30.

Adding to 252250442220 its reverse (22244052252), we get a palindrome (274494494472).

The spelling of 252250442220 in words is "two hundred fifty-two billion, two hundred fifty million, four hundred forty-two thousand, two hundred twenty".