53443444 has 24 divisors (see below), whose sum is σ = 103336128. Its totient is φ = 24055680.

The previous prime is 53443391. The next prime is 53443457. The reversal of 53443444 is 44434435.

It is a super-2 number, since 2×53443444² = 5712403413162272, which contains 22 as substring.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 15522 + ... + 18649.

It is an arithmetic number, because the mean of its divisors is an integer number (4305672).

Almost surely, 2^53443444 is an apocalyptic number.

It is an amenable number.

53443444 is a deficient number, since it is larger than the sum of its proper divisors (49892684).

53443444 is a wasteful number, since it uses less digits than its factorization.

53443444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34215 (or 34213 counting only the distinct ones).

The product of its digits is 46080, while the sum is 31.

The square root of 53443444 is about 7310.5023083233. The cubic root of 53443444 is about 376.6732787451.

Adding to 53443444 its reverse (44434435), we get a palindrome (97877879).

Subtracting from 53443444 its reverse (44434435), we obtain a palindrome (9009009).

The spelling of 53443444 in words is "fifty-three million, four hundred forty-three thousand, four hundred forty-four".