56669446 has 16 divisors (see below), whose sum is σ = 85929984. Its totient is φ = 28028104.

The previous prime is 56669443. The next prime is 56669453. The reversal of 56669446 is 64496665.

It is a super-2 number, since 2×56669446² = 6422852219893832, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 56669396 and 56669405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56669443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127701 + ... + 128143.

It is an arithmetic number, because the mean of its divisors is an integer number (5370624).

Almost surely, 2^56669446 is an apocalyptic number.

56669446 is a deficient number, since it is larger than the sum of its proper divisors (29260538).

56669446 is a wasteful number, since it uses less digits than its factorization.

56669446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995.

The product of its digits is 933120, while the sum is 46.

The square root of 56669446 is about 7527.9111312502. The cubic root of 56669446 is about 384.1047303675.

The spelling of 56669446 in words is "fifty-six million, six hundred sixty-nine thousand, four hundred forty-six".