256229611 has 16 divisors (see below), whose sum is σ = 294860160. Its totient is φ = 220207680.

The previous prime is 256229579. The next prime is 256229629. The reversal of 256229611 is 116922652.

It is a happy number.

It is not a de Polignac number, because 256229611 - 2⁵ = 256229579 is a prime.

It is a super-2 number, since 2×256229611² = 131307227106422642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (256229011) 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, 127960 + ... + 129946.

It is an arithmetic number, because the mean of its divisors is an integer number (18428760).

Almost surely, 2^256229611 is an apocalyptic number.

256229611 is a deficient number, since it is larger than the sum of its proper divisors (38630549).

256229611 is a wasteful number, since it uses less digits than its factorization.

256229611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2634.

The product of its digits is 12960, while the sum is 34.

The square root of 256229611 is about 16007.1737355474. The cubic root of 256229611 is about 635.1501998634.

The spelling of 256229611 in words is "two hundred fifty-six million, two hundred twenty-nine thousand, six hundred eleven".