53433664 has 28 divisors (see below), whose sum is σ = 107494324. Its totient is φ = 26348544.

The previous prime is 53433647. The next prime is 53433671. The reversal of 53433664 is 46633435.

It can be written as a sum of positive squares in 2 ways, for example, as 22963264 + 30470400 = 4792^2 + 5520^2 .

It is a congruent number.

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, 1047 + ... + 10390.

It is an arithmetic number, because the mean of its divisors is an integer number (3839083).

Almost surely, 2^53433664 is an apocalyptic number.

It is an amenable number.

53433664 is an abundant number, since it is smaller than the sum of its proper divisors (54060660).

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

53433664 is a wasteful number, since it uses less digits than its factorization.

53433664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11522 (or 11512 counting only the distinct ones).

The product of its digits is 77760, while the sum is 34.

The square root of 53433664 is about 7309.8333770340. The cubic root of 53433664 is about 376.6503006264.

The spelling of 53433664 in words is "fifty-three million, four hundred thirty-three thousand, six hundred sixty-four".