56669305 has 64 divisors (see below), whose sum is σ = 91422720. Its totient is φ = 32659200.

The previous prime is 56669281. The next prime is 56669317. The reversal of 56669305 is 50396665.

56669305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56669305 - 2⁵ = 56669273 is a prime.

It is a super-2 number, since 2×56669305² = 6422820258366050, which contains 22 as substring.

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 in 63 ways as a sum of consecutive naturals, for example, 446152 + ... + 446278.

It is an arithmetic number, because the mean of its divisors is an integer number (1428480).

Almost surely, 2^56669305 is an apocalyptic number.

56669305 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

56669305 is a deficient number, since it is larger than the sum of its proper divisors (34753415).

56669305 is a wasteful number, since it uses less digits than its factorization.

56669305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230.

The product of its (nonzero) digits is 145800, while the sum is 40.

The square root of 56669305 is about 7527.9017660966. The cubic root of 56669305 is about 384.1044118018.

The spelling of 56669305 in words is "fifty-six million, six hundred sixty-nine thousand, three hundred five".