253352240220 has 96 divisors (see below), whose sum is σ = 711819440640. Its totient is φ = 67329250560.

The previous prime is 253352240159. The next prime is 253352240237. The reversal of 253352240220 is 22042253352.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23754609 + ... + 23765271.

It is an arithmetic number, because the mean of its divisors is an integer number (7414785840).

Almost surely, 2^253352240220 is an apocalyptic number.

253352240220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253352240220 is an abundant number, since it is smaller than the sum of its proper divisors (458467200420).

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

253352240220 is a wasteful number, since it uses less digits than its factorization.

253352240220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11995 (or 11993 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 30.

Adding to 253352240220 its reverse (22042253352), we get a palindrome (275394493572).

The spelling of 253352240220 in words is "two hundred fifty-three billion, three hundred fifty-two million, two hundred forty thousand, two hundred twenty".