256197035 has 4 divisors (see below), whose sum is σ = 307436448. Its totient is φ = 204957624.

The previous prime is 256197017. The next prime is 256197059. The reversal of 256197035 is 530791652.

It is a happy number.

256197035 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 256197035 - 2⁶ = 256196971 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 256197035.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25619699 + ... + 25619708.

It is an arithmetic number, because the mean of its divisors is an integer number (76859112).

Almost surely, 2^256197035 is an apocalyptic number.

256197035 is a deficient number, since it is larger than the sum of its proper divisors (51239413).

256197035 is an equidigital number, since it uses as much as digits as its factorization.

256197035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51239412.

The product of its (nonzero) digits is 56700, while the sum is 38.

The square root of 256197035 is about 16006.1561594282. The cubic root of 256197035 is about 635.1232819105.

The spelling of 256197035 in words is "two hundred fifty-six million, one hundred ninety-seven thousand, thirty-five".