256226995 has 8 divisors (see below), whose sum is σ = 310927680. Its totient is φ = 202678080.

The previous prime is 256226987. The next prime is 256227017. The reversal of 256226995 is 599622652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 256226995 - 2³ = 256226987 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 287451 + ... + 288340.

It is an arithmetic number, because the mean of its divisors is an integer number (38865960).

Almost surely, 2^256226995 is an apocalyptic number.

256226995 is a deficient number, since it is larger than the sum of its proper divisors (54700685).

256226995 is an equidigital number, since it uses as much as digits as its factorization.

256226995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575885.

The product of its digits is 583200, while the sum is 46.

The square root of 256226995 is about 16007.0920219758. The cubic root of 256226995 is about 635.1480383144.

The spelling of 256226995 in words is "two hundred fifty-six million, two hundred twenty-six thousand, nine hundred ninety-five".