56090666 has 4 divisors (see below), whose sum is σ = 84136002. Its totient is φ = 28045332.

The previous prime is 56090647. The next prime is 56090681. The reversal of 56090666 is 66609065.

56090666 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 can be written as a sum of positive squares in only one way, i.e., 54834025 + 1256641 = 7405^2 + 1121^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 14022665 + ... + 14022668.

Almost surely, 2^56090666 is an apocalyptic number.

56090666 is a deficient number, since it is larger than the sum of its proper divisors (28045336).

56090666 is a wasteful number, since it uses less digits than its factorization.

56090666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28045335.

The product of its (nonzero) digits is 58320, while the sum is 38.

The square root of 56090666 is about 7489.3702004908. The cubic root of 56090666 is about 382.7925988188.

The spelling of 56090666 in words is "fifty-six million, ninety thousand, six hundred sixty-six".