53664199 has 4 divisors (see below), whose sum is σ = 53680480. Its totient is φ = 53647920.

The previous prime is 53664197. The next prime is 53664209. The reversal of 53664199 is 99146635.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53664199 - 2¹ = 53664197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53664197) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1254 + ... + 10435.

It is an arithmetic number, because the mean of its divisors is an integer number (13420120).

Almost surely, 2^53664199 is an apocalyptic number.

53664199 is a deficient number, since it is larger than the sum of its proper divisors (16281).

53664199 is a wasteful number, since it uses less digits than its factorization.

53664199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16280.

The product of its digits is 174960, while the sum is 43.

The square root of 53664199 is about 7325.5852325940. The cubic root of 53664199 is about 377.1911987164.

The spelling of 53664199 in words is "fifty-three million, six hundred sixty-four thousand, one hundred ninety-nine".