56170493 has 2 divisors, whose sum is σ = 56170494. Its totient is φ = 56170492.

The previous prime is 56170487. The next prime is 56170519. The reversal of 56170493 is 39407165.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48972004 + 7198489 = 6998^2 + 2683^2 .

It is a cyclic number.

It is not a de Polignac number, because 56170493 - 2⁸ = 56170237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56170423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28085246 + 28085247.

It is an arithmetic number, because the mean of its divisors is an integer number (28085247).

Almost surely, 2^56170493 is an apocalyptic number.

It is an amenable number.

56170493 is a deficient number, since it is larger than the sum of its proper divisors (1).

56170493 is an equidigital number, since it uses as much as digits as its factorization.

56170493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 56170493 is about 7494.6976590120. The cubic root of 56170493 is about 382.9741067375.

The spelling of 56170493 in words is "fifty-six million, one hundred seventy thousand, four hundred ninety-three".