56667845 has 16 divisors (see below), whose sum is σ = 75597312. Its totient is φ = 40495680.

The previous prime is 56667839. The next prime is 56667847. The reversal of 56667845 is 54876665.

56667845 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 56667845 - 2¹⁰ = 56666821 is a prime.

It is a super-2 number, since 2×56667845² = 6422489313888050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56667845.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56667847) 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 15 ways as a sum of consecutive naturals, for example, 12047 + ... + 16076.

It is an arithmetic number, because the mean of its divisors is an integer number (4724832).

Almost surely, 2^56667845 is an apocalyptic number.

It is an amenable number.

56667845 is a deficient number, since it is larger than the sum of its proper divisors (18929467).

56667845 is a wasteful number, since it uses less digits than its factorization.

56667845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28172.

The product of its digits is 1209600, while the sum is 47.

The square root of 56667845 is about 7527.8047928995. The cubic root of 56667845 is about 384.1011131480.

The spelling of 56667845 in words is "fifty-six million, six hundred sixty-seven thousand, eight hundred forty-five".