253496938920 has 128 divisors (see below), whose sum is σ = 795806726400. Its totient is φ = 64476667904.

The previous prime is 253496938901. The next prime is 253496938949. The reversal of 253496938920 is 29839694352.

It is a Harshad number since it is a multiple of its sum of digits (60).

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, 844186 + ... + 1104374.

It is an arithmetic number, because the mean of its divisors is an integer number (6217240050).

Almost surely, 2^253496938920 is an apocalyptic number.

253496938920 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 253496938920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (397903363200).

253496938920 is an abundant number, since it is smaller than the sum of its proper divisors (542309787480).

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

253496938920 is a wasteful number, since it uses less digits than its factorization.

253496938920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260579 (or 260575 counting only the distinct ones).

The product of its (nonzero) digits is 25194240, while the sum is 60.

The spelling of 253496938920 in words is "two hundred fifty-three billion, four hundred ninety-six million, nine hundred thirty-eight thousand, nine hundred twenty".