56195666 has 16 divisors (see below), whose sum is σ = 86758560. Its totient is φ = 27282720.

The previous prime is 56195641. The next prime is 56195669. The reversal of 56195666 is 66659165.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56195669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17105 + ... + 20123.

It is an arithmetic number, because the mean of its divisors is an integer number (5422410).

Almost surely, 2^56195666 is an apocalyptic number.

56195666 is a deficient number, since it is larger than the sum of its proper divisors (30562894).

56195666 is a wasteful number, since it uses less digits than its factorization.

56195666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3289.

The product of its digits is 291600, while the sum is 44.

The square root of 56195666 is about 7496.3768581896. The cubic root of 56195666 is about 383.0313085818.

The spelling of 56195666 in words is "fifty-six million, one hundred ninety-five thousand, six hundred sixty-six".