53400320 has 36 divisors (see below), whose sum is σ = 127913520. Its totient is φ = 21359616.

The previous prime is 53400289. The next prime is 53400323. The reversal of 53400320 is 2300435.

It is a super-2 number, since 2×53400320² = 5703188352204800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53400323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19580 + ... + 22139.

Almost surely, 2^53400320 is an apocalyptic number.

It is an amenable number.

53400320 is an abundant number, since it is smaller than the sum of its proper divisors (74513200).

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

53400320 is an equidigital number, since it uses as much as digits as its factorization.

53400320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41740 (or 41726 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 17.

The square root of 53400320 is about 7307.5522577673. The cubic root of 53400320 is about 376.5719377868.

Adding to 53400320 its reverse (2300435), we get a palindrome (55700755).

The spelling of 53400320 in words is "fifty-three million, four hundred thousand, three hundred twenty".