256322201 has 4 divisors (see below), whose sum is σ = 262574004. Its totient is φ = 250070400.

The previous prime is 256322197. The next prime is 256322233. The reversal of 256322201 is 102223652.

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

It can be written as a sum of positive squares in 2 ways, for example, as 66846976 + 189475225 = 8176^2 + 13765^2 .

It is a cyclic number.

It is not a de Polignac number, because 256322201 - 2² = 256322197 is a prime.

It is not an unprimeable number, because it can be changed into a prime (256322501) 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, 3125840 + ... + 3125921.

It is an arithmetic number, because the mean of its divisors is an integer number (65643501).

Almost surely, 2^256322201 is an apocalyptic number.

It is an amenable number.

256322201 is a deficient number, since it is larger than the sum of its proper divisors (6251803).

256322201 is an equidigital number, since it uses as much as digits as its factorization.

256322201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6251802.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 256322201 is about 16010.0656151060. The cubic root of 256322201 is about 635.2266956733.

Adding to 256322201 its reverse (102223652), we get a palindrome (358545853).

The spelling of 256322201 in words is "two hundred fifty-six million, three hundred twenty-two thousand, two hundred one".