53666799 has 8 divisors (see below), whose sum is σ = 72624000. Its totient is φ = 35243736.

The previous prime is 53666783. The next prime is 53666803. The reversal of 53666799 is 99766635.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53666799 - 2⁴ = 53666783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53666719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133299 + ... + 133700.

It is an arithmetic number, because the mean of its divisors is an integer number (9078000).

Almost surely, 2^53666799 is an apocalyptic number.

53666799 is a deficient number, since it is larger than the sum of its proper divisors (18957201).

53666799 is a wasteful number, since it uses less digits than its factorization.

53666799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267069.

The product of its digits is 1837080, while the sum is 51.

The square root of 53666799 is about 7325.7626906691. The cubic root of 53666799 is about 377.1972901846.

The spelling of 53666799 in words is "fifty-three million, six hundred sixty-six thousand, seven hundred ninety-nine".