53433216 has 64 divisors (see below), whose sum is σ = 157712400. Its totient is φ = 17809920.

The previous prime is 53433179. The next prime is 53433241. The reversal of 53433216 is 61233435.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 53433216.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4275 + ... + 11186.

Almost surely, 2^53433216 is an apocalyptic number.

It is an amenable number.

53433216 is an abundant number, since it is smaller than the sum of its proper divisors (104279184).

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

53433216 is a wasteful number, since it uses less digits than its factorization.

53433216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15484 (or 15466 counting only the distinct ones).

The product of its digits is 6480, while the sum is 27.

The square root of 53433216 is about 7309.8027333164. The cubic root of 53433216 is about 376.6492479828.

The spelling of 53433216 in words is "fifty-three million, four hundred thirty-three thousand, two hundred sixteen".