256412311 has 8 divisors (see below), whose sum is σ = 266073984. Its totient is φ = 246918840.

The previous prime is 256412297. The next prime is 256412323. The reversal of 256412311 is 113214652.

It is a happy number.

256412311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 256412311 - 2¹⁹ = 255888023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256412381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38941 + ... + 45046.

It is an arithmetic number, because the mean of its divisors is an integer number (33259248).

Almost surely, 2^256412311 is an apocalyptic number.

256412311 is a deficient number, since it is larger than the sum of its proper divisors (9661673).

256412311 is an equidigital number, since it uses as much as digits as its factorization.

256412311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84101.

The product of its digits is 1440, while the sum is 25.

The square root of 256412311 is about 16012.8795349244. The cubic root of 256412311 is about 635.3011248761.

Adding to 256412311 its reverse (113214652), we get a palindrome (369626963).

The spelling of 256412311 in words is "two hundred fifty-six million, four hundred twelve thousand, three hundred eleven".