53481984 has 40 divisors (see below), whose sum is σ = 142483440. Its totient is φ = 17826816.

The previous prime is 53481947. The next prime is 53481991. The reversal of 53481984 is 48918435.

It is a super-2 number, since 2×53481984² = 5720645225152512, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15874 + ... + 18945.

It is an arithmetic number, because the mean of its divisors is an integer number (3562086).

Almost surely, 2^53481984 is an apocalyptic number.

It is an amenable number.

53481984 is an abundant number, since it is smaller than the sum of its proper divisors (89001456).

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

53481984 is an equidigital number, since it uses as much as digits as its factorization.

53481984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34840 (or 34824 counting only the distinct ones).

The product of its digits is 138240, while the sum is 42.

The square root of 53481984 is about 7313.1377670600. The cubic root of 53481984 is about 376.7638012295.

The spelling of 53481984 in words is "fifty-three million, four hundred eighty-one thousand, nine hundred eighty-four".