253238988141940 has 24 divisors (see below), whose sum is σ = 554923695755520. Its totient is φ = 96891438941088.

The previous prime is 253238988141913. The next prime is 253238988141947. The reversal of 253238988141940 is 49141889832352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253238988141947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 275259769260 + ... + 275259770179.

It is an arithmetic number, because the mean of its divisors is an integer number (23121820656480).

Almost surely, 2^{253238988141940} is an apocalyptic number.

253238988141940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253238988141940 is an abundant number, since it is smaller than the sum of its proper divisors (301684707613580).

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

253238988141940 is a wasteful number, since it uses less digits than its factorization.

253238988141940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550519539471 (or 550519539469 counting only the distinct ones).

The product of its (nonzero) digits is 119439360, while the sum is 67.

The spelling of 253238988141940 in words is "two hundred fifty-three trillion, two hundred thirty-eight billion, nine hundred eighty-eight million, one hundred forty-one thousand, nine hundred forty".