56170201 has 4 divisors (see below), whose sum is σ = 56248192. Its totient is φ = 56092212.

The previous prime is 56170139. The next prime is 56170223. The reversal of 56170201 is 10207165.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10207165 = 5 ⋅2041433.

It is a cyclic number.

It is not a de Polignac number, because 56170201 - 2⁷ = 56170073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56170271) 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, 37905 + ... + 39358.

It is an arithmetic number, because the mean of its divisors is an integer number (14062048).

Almost surely, 2^56170201 is an apocalyptic number.

It is an amenable number.

56170201 is a deficient number, since it is larger than the sum of its proper divisors (77991).

56170201 is an equidigital number, since it uses as much as digits as its factorization.

56170201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77990.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 56170201 is about 7494.6781785478. The cubic root of 56170201 is about 382.9734431113.

Adding to 56170201 its reverse (10207165), we get a palindrome (66377366).

The spelling of 56170201 in words is "fifty-six million, one hundred seventy thousand, two hundred one".