253444944722 has 18 divisors (see below), whose sum is σ = 383321185623. Its totient is φ = 125679804012.

The previous prime is 253444944719. The next prime is 253444944743. The reversal of 253444944722 is 227449444352.

It can be written as a sum of positive squares in only one way, i.e., 126722472361 + 126722472361 = 355981^2 + 355981^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=355981.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 90417773 + ... + 90420575.

Almost surely, 2^253444944722 is an apocalyptic number.

253444944722 is a deficient number, since it is larger than the sum of its proper divisors (129876240901).

253444944722 is an frugal number, since it uses more digits than its factorization.

253444944722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5862 (or 2932 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 50.

Multiplying 253444944722 by its sum of digits (50), we get a square (12672247236100 = 3559810²).

The spelling of 253444944722 in words is "two hundred fifty-three billion, four hundred forty-four million, nine hundred forty-four thousand, seven hundred twenty-two".