256422611 has 16 divisors (see below), whose sum is σ = 283551840. Its totient is φ = 230791680.

The previous prime is 256422599. The next prime is 256422629. The reversal of 256422611 is 116224652.

It is a cyclic number.

It is not a de Polignac number, because 256422611 - 2⁶ = 256422547 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (256422641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50321 + ... + 55181.

It is an arithmetic number, because the mean of its divisors is an integer number (17721990).

Almost surely, 2^256422611 is an apocalyptic number.

256422611 is a deficient number, since it is larger than the sum of its proper divisors (27129229).

256422611 is a wasteful number, since it uses less digits than its factorization.

256422611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5014.

The product of its digits is 5760, while the sum is 29.

The square root of 256422611 is about 16013.2011478030. The cubic root of 256422611 is about 635.3096313761.

The spelling of 256422611 in words is "two hundred fifty-six million, four hundred twenty-two thousand, six hundred eleven".