53133472 has 24 divisors (see below), whose sum is σ = 119550816. Its totient is φ = 22771392.

The previous prime is 53133463. The next prime is 53133503. The reversal of 53133472 is 27433135.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 53133472.

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, 118378 + ... + 118825.

It is an arithmetic number, because the mean of its divisors is an integer number (4981284).

Almost surely, 2^53133472 is an apocalyptic number.

It is an amenable number.

53133472 is an abundant number, since it is smaller than the sum of its proper divisors (66417344).

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

53133472 is a wasteful number, since it uses less digits than its factorization.

53133472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237220 (or 237212 counting only the distinct ones).

The product of its digits is 7560, while the sum is 28.

The square root of 53133472 is about 7289.2710197934. The cubic root of 53133472 is about 375.9436312057.

The spelling of 53133472 in words is "fifty-three million, one hundred thirty-three thousand, four hundred seventy-two".