56866642 has 8 divisors (see below), whose sum is σ = 97485696. Its totient is φ = 24371412.

The previous prime is 56866633. The next prime is 56866643. The reversal of 56866642 is 24666865.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (56866643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2030938 + ... + 2030965.

It is an arithmetic number, because the mean of its divisors is an integer number (12185712).

Almost surely, 2^56866642 is an apocalyptic number.

56866642 is a deficient number, since it is larger than the sum of its proper divisors (40619054).

56866642 is a wasteful number, since it uses less digits than its factorization.

56866642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4061912.

The product of its digits is 414720, while the sum is 43.

The square root of 56866642 is about 7540.9974141356. The cubic root of 56866642 is about 384.5497451820.

The spelling of 56866642 in words is "fifty-six million, eight hundred sixty-six thousand, six hundred forty-two".