56170247 has 4 divisors (see below), whose sum is σ = 64194576. Its totient is φ = 48145920.

The previous prime is 56170243. The next prime is 56170253. The reversal of 56170247 is 74207165.

56170247 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56170247 - 2² = 56170243 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56170243) 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 3 ways as a sum of consecutive naturals, for example, 4012154 + ... + 4012167.

It is an arithmetic number, because the mean of its divisors is an integer number (16048644).

Almost surely, 2^56170247 is an apocalyptic number.

56170247 is a deficient number, since it is larger than the sum of its proper divisors (8024329).

56170247 is an equidigital number, since it uses as much as digits as its factorization.

56170247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8024328.

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 56170247 is about 7494.6812473914. The cubic root of 56170247 is about 382.9735476553.

The spelling of 56170247 in words is "fifty-six million, one hundred seventy thousand, two hundred forty-seven".