253504365580 has 96 divisors (see below), whose sum is σ = 571532451840. Its totient is φ = 94269277440.

The previous prime is 253504365553. The next prime is 253504365581. The reversal of 253504365580 is 85563405352.

It is a self number, because there is not a number n which added to its sum of digits gives 253504365580.

It is not an unprimeable number, because it can be changed into a prime (253504365581) 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, 1742319 + ... + 1882201.

It is an arithmetic number, because the mean of its divisors is an integer number (5953463040).

Almost surely, 2^253504365580 is an apocalyptic number.

253504365580 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 253504365580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285766225920).

253504365580 is an abundant number, since it is smaller than the sum of its proper divisors (318028086260).

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

253504365580 is a wasteful number, since it uses less digits than its factorization.

253504365580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140039 (or 140037 counting only the distinct ones).

The product of its (nonzero) digits is 2160000, while the sum is 46.

The spelling of 253504365580 in words is "two hundred fifty-three billion, five hundred four million, three hundred sixty-five thousand, five hundred eighty".