56066699 has 4 divisors (see below), whose sum is σ = 60379536. Its totient is φ = 51753864.

The previous prime is 56066687. The next prime is 56066719. The reversal of 56066699 is 99666065.

It is a happy number.

56066699 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 56066699 - 2⁴ = 56066683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56066669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2156399 + ... + 2156424.

It is an arithmetic number, because the mean of its divisors is an integer number (15094884).

Almost surely, 2^56066699 is an apocalyptic number.

56066699 is a deficient number, since it is larger than the sum of its proper divisors (4312837).

56066699 is a wasteful number, since it uses less digits than its factorization.

56066699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4312836.

The product of its (nonzero) digits is 524880, while the sum is 47.

The square root of 56066699 is about 7487.7699617443. The cubic root of 56066699 is about 382.7380698577.

It can be divided in two parts, 56066 and 699, that added together give a palindrome (56765).

The spelling of 56066699 in words is "fifty-six million, sixty-six thousand, six hundred ninety-nine".