253109083420 has 12 divisors (see below), whose sum is σ = 531529075224. Its totient is φ = 101243633360.

The previous prime is 253109083397. The next prime is 253109083459. The reversal of 253109083420 is 24380901352.

It is a self number, because there is not a number n which added to its sum of digits gives 253109083420.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6327727066 + ... + 6327727105.

It is an arithmetic number, because the mean of its divisors is an integer number (44294089602).

Almost surely, 2^253109083420 is an apocalyptic number.

253109083420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253109083420 is an abundant number, since it is smaller than the sum of its proper divisors (278419991804).

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

253109083420 is a wasteful number, since it uses less digits than its factorization.

253109083420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12655454180 (or 12655454178 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

Adding to 253109083420 its reverse (24380901352), we get a palindrome (277489984772).

The spelling of 253109083420 in words is "two hundred fifty-three billion, one hundred nine million, eighty-three thousand, four hundred twenty".