56664806 has 8 divisors (see below), whose sum is σ = 92724264. Its totient is φ = 25756720.

The previous prime is 56664799. The next prime is 56664809. The reversal of 56664806 is 60846665.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56664809) 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, 1287815 + ... + 1287858.

It is an arithmetic number, because the mean of its divisors is an integer number (11590533).

Almost surely, 2^56664806 is an apocalyptic number.

56664806 is a deficient number, since it is larger than the sum of its proper divisors (36059458).

56664806 is a wasteful number, since it uses less digits than its factorization.

56664806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2575686.

The product of its (nonzero) digits is 207360, while the sum is 41.

The square root of 56664806 is about 7527.6029385190. The cubic root of 56664806 is about 384.0942467958.

The spelling of 56664806 in words is "fifty-six million, six hundred sixty-four thousand, eight hundred six".