253221454344 has 16 divisors (see below), whose sum is σ = 633053635920. Its totient is φ = 84407151440.

The previous prime is 253221454307. The next prime is 253221454351. The reversal of 253221454344 is 443454122352.

253221454344 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×253221454344² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5275446942 + ... + 5275446989.

It is an arithmetic number, because the mean of its divisors is an integer number (39565852245).

Almost surely, 2^253221454344 is an apocalyptic number.

253221454344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

253221454344 is an abundant number, since it is smaller than the sum of its proper divisors (379832181576).

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

253221454344 is a wasteful number, since it uses less digits than its factorization.

253221454344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10550893940 (or 10550893936 counting only the distinct ones).

The product of its digits is 460800, while the sum is 39.

Adding to 253221454344 its reverse (443454122352), we get a palindrome (696675576696).

The spelling of 253221454344 in words is "two hundred fifty-three billion, two hundred twenty-one million, four hundred fifty-four thousand, three hundred forty-four".