53391984 has 20 divisors (see below), whose sum is σ = 137929416. Its totient is φ = 17797312.

The previous prime is 53391983. The next prime is 53392021. The reversal of 53391984 is 48919335.

53391984 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53391983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 556119 + ... + 556214.

Almost surely, 2^53391984 is an apocalyptic number.

It is an amenable number.

53391984 is an abundant number, since it is smaller than the sum of its proper divisors (84537432).

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

53391984 is a wasteful number, since it uses less digits than its factorization.

53391984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1112344 (or 1112338 counting only the distinct ones).

The product of its digits is 116640, while the sum is 42.

The square root of 53391984 is about 7306.9818666807. The cubic root of 53391984 is about 376.5523419802.

The spelling of 53391984 in words is "fifty-three million, three hundred ninety-one thousand, nine hundred eighty-four".