53455444 has 24 divisors (see below), whose sum is σ = 107110080. Its totient is φ = 22866816.

The previous prime is 53455433. The next prime is 53455469. The reversal of 53455444 is 44455435.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17004 + ... + 19900.

It is an arithmetic number, because the mean of its divisors is an integer number (4462920).

Almost surely, 2^53455444 is an apocalyptic number.

It is an amenable number.

53455444 is an abundant number, since it is smaller than the sum of its proper divisors (53654636).

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

53455444 is a wasteful number, since it uses less digits than its factorization.

53455444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3567 (or 3565 counting only the distinct ones).

The product of its digits is 96000, while the sum is 34.

The square root of 53455444 is about 7311.3229992936. The cubic root of 53455444 is about 376.7014689261.

Subtracting from 53455444 its reverse (44455435), we obtain a palindrome (9000009).

The spelling of 53455444 in words is "fifty-three million, four hundred fifty-five thousand, four hundred forty-four".