56165674 has 4 divisors (see below), whose sum is σ = 84248514. Its totient is φ = 28082836.

The previous prime is 56165657. The next prime is 56165677. The reversal of 56165674 is 47656165.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47656165 = 5 ⋅9531233.

It can be written as a sum of positive squares in only one way, i.e., 39150049 + 17015625 = 6257^2 + 4125^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (56165677) 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 as a sum of consecutive naturals, namely, 14041417 + ... + 14041420.

Almost surely, 2^56165674 is an apocalyptic number.

56165674 is a deficient number, since it is larger than the sum of its proper divisors (28082840).

56165674 is a wasteful number, since it uses less digits than its factorization.

56165674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28082839.

The product of its digits is 151200, while the sum is 40.

The square root of 56165674 is about 7494.3761581602. The cubic root of 56165674 is about 382.9631543382.

The spelling of 56165674 in words is "fifty-six million, one hundred sixty-five thousand, six hundred seventy-four".