253203440320 has 56 divisors (see below), whose sum is σ = 602984401344. Its totient is φ = 101274034176.

The previous prime is 253203440317. The next prime is 253203440333. The reversal of 253203440320 is 23044302352.

It is a super-2 number, since 2×253203440320² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7370704 + ... + 7404976.

Almost surely, 2^253203440320 is an apocalyptic number.

253203440320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253203440320 is an abundant number, since it is smaller than the sum of its proper divisors (349780961024).

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

253203440320 is a wasteful number, since it uses less digits than its factorization.

253203440320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57377 (or 57367 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 28.

Adding to 253203440320 its reverse (23044302352), we get a palindrome (276247742672).

The spelling of 253203440320 in words is "two hundred fifty-three billion, two hundred three million, four hundred forty thousand, three hundred twenty".