56170423 has 2 divisors, whose sum is σ = 56170424. Its totient is φ = 56170422.

The previous prime is 56170421. The next prime is 56170459. The reversal of 56170423 is 32407165.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56170423 - 2¹ = 56170421 is a prime.

Together with 56170421, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 56170391 and 56170400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56170421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28085211 + 28085212.

It is an arithmetic number, because the mean of its divisors is an integer number (28085212).

Almost surely, 2^56170423 is an apocalyptic number.

56170423 is a deficient number, since it is larger than the sum of its proper divisors (1).

56170423 is an equidigital number, since it uses as much as digits as its factorization.

56170423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 56170423 is about 7494.6929890423. The cubic root of 56170423 is about 382.9739476493.

Adding to 56170423 its reverse (32407165), we get a palindrome (88577588).

The spelling of 56170423 in words is "fifty-six million, one hundred seventy thousand, four hundred twenty-three".