53399344 has 20 divisors (see below), whose sum is σ = 104038480. Its totient is φ = 26550720.

The previous prime is 53399327. The next prime is 53399347. The reversal of 53399344 is 44399335.

It is a junction number, because it is equal to n+sod(n) for n = 53399297 and 53399306.

It is not an unprimeable number, because it can be changed into a prime (53399347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6324 + ... + 12115.

It is an arithmetic number, because the mean of its divisors is an integer number (5201924).

Almost surely, 2^53399344 is an apocalyptic number.

It is an amenable number.

53399344 is a deficient number, since it is larger than the sum of its proper divisors (50639136).

53399344 is a wasteful number, since it uses less digits than its factorization.

53399344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18628 (or 18622 counting only the distinct ones).

The product of its digits is 174960, while the sum is 40.

The square root of 53399344 is about 7307.4854772350. The cubic root of 53399344 is about 376.5696435655.

Subtracting from 53399344 its reverse (44399335), we obtain a palindrome (9000009).

The spelling of 53399344 in words is "fifty-three million, three hundred ninety-nine thousand, three hundred forty-four".