253445121304 has 16 divisors (see below), whose sum is σ = 475218252720. Its totient is φ = 126720253920.

The previous prime is 253445121257. The next prime is 253445121317. The reversal of 253445121304 is 403121544352.

It is a self number, because there is not a number n which added to its sum of digits gives 253445121304.

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, 234349 + ... + 749539.

It is an arithmetic number, because the mean of its divisors is an integer number (29701140795).

Almost surely, 2^253445121304 is an apocalyptic number.

It is an amenable number.

253445121304 is a deficient number, since it is larger than the sum of its proper divisors (221773131416).

253445121304 is a wasteful number, since it uses less digits than its factorization.

253445121304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576690 (or 576686 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 34.

Adding to 253445121304 its reverse (403121544352), we get a palindrome (656566665656).

The spelling of 253445121304 in words is "two hundred fifty-three billion, four hundred forty-five million, one hundred twenty-one thousand, three hundred four".