256453211 has 40 divisors (see below), whose sum is σ = 325095264. Its totient is φ = 201519360.

The previous prime is 256453201. The next prime is 256453229. The reversal of 256453211 is 112354652.

It is not a de Polignac number, because 256453211 - 2¹⁴ = 256436827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (256453201) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2489786 + ... + 2489888.

Almost surely, 2^256453211 is an apocalyptic number.

256453211 is a deficient number, since it is larger than the sum of its proper divisors (68642053).

256453211 is an equidigital number, since it uses as much as digits as its factorization.

256453211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209 (or 188 counting only the distinct ones).

The product of its digits is 7200, while the sum is 29.

The square root of 256453211 is about 16014.1565809755. The cubic root of 256453211 is about 635.3349017705.

The spelling of 256453211 in words is "two hundred fifty-six million, four hundred fifty-three thousand, two hundred eleven".