53664366 has 16 divisors (see below), whose sum is σ = 122661504. Its totient is φ = 15332664.

The previous prime is 53664349. The next prime is 53664409. The reversal of 53664366 is 66346635.

It is a happy number.

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, 638820 + ... + 638903.

It is an arithmetic number, because the mean of its divisors is an integer number (7666344).

Almost surely, 2^53664366 is an apocalyptic number.

53664366 is an abundant number, since it is smaller than the sum of its proper divisors (68997138).

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

53664366 is a wasteful number, since it uses less digits than its factorization.

53664366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1277735.

The product of its digits is 233280, while the sum is 39.

The square root of 53664366 is about 7325.5966309919. The cubic root of 53664366 is about 377.1915899820.

The spelling of 53664366 in words is "fifty-three million, six hundred sixty-four thousand, three hundred sixty-six".