53664264 has 24 divisors (see below), whose sum is σ = 145340910. Its totient is φ = 17888064.

The previous prime is 53664251. The next prime is 53664269. The reversal of 53664264 is 46246635.

53664264 is a `hidden beast` number, since 5 + 3 + 6 + 642 + 6 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 44116164 + 9548100 = 6642^2 + 3090^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (53664269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 372597 + ... + 372740.

Almost surely, 2^53664264 is an apocalyptic number.

It is an amenable number.

53664264 is an abundant number, since it is smaller than the sum of its proper divisors (91676646).

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

53664264 is a wasteful number, since it uses less digits than its factorization.

53664264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745349 (or 745342 counting only the distinct ones).

The product of its digits is 103680, while the sum is 36.

The square root of 53664264 is about 7325.5896690983. The cubic root of 53664264 is about 377.1913510055.

The spelling of 53664264 in words is "fifty-three million, six hundred sixty-four thousand, two hundred sixty-four".