256358723 has 4 divisors (see below), whose sum is σ = 256414968. Its totient is φ = 256302480.

The previous prime is 256358719. The next prime is 256358737. The reversal of 256358723 is 327853652.

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 256358723 - 2² = 256358719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (256358743) 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, 20618 + ... + 30623.

It is an arithmetic number, because the mean of its divisors is an integer number (64103742).

Almost surely, 2^256358723 is an apocalyptic number.

256358723 is a deficient number, since it is larger than the sum of its proper divisors (56245).

256358723 is an equidigital number, since it uses as much as digits as its factorization.

256358723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56244.

The product of its digits is 302400, while the sum is 41.

The square root of 256358723 is about 16011.2061694302. The cubic root of 256358723 is about 635.2568642756.

The spelling of 256358723 in words is "two hundred fifty-six million, three hundred fifty-eight thousand, seven hundred twenty-three".