253453444 has 6 divisors (see below), whose sum is σ = 443543534. Its totient is φ = 126726720.

The previous prime is 253453433. The next prime is 253453511. The reversal of 253453444 is 444354352.

It can be written as a sum of positive squares in only one way, i.e., 144000000 + 109453444 = 12000^2 + 10462^2 .

It is a super-2 number, since 2×253453444² = 128477296550922272, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31681677 + ... + 31681684.

Almost surely, 2^253453444 is an apocalyptic number.

It is an amenable number.

253453444 is a deficient number, since it is larger than the sum of its proper divisors (190090090).

253453444 is a wasteful number, since it uses less digits than its factorization.

253453444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63363365 (or 63363363 counting only the distinct ones).

The product of its digits is 115200, while the sum is 34.

The square root of 253453444 is about 15920.2212296186. The cubic root of 253453444 is about 632.8479811176.

The spelling of 253453444 in words is "two hundred fifty-three million, four hundred fifty-three thousand, four hundred forty-four".