4256122655 has 16 divisors (see below), whose sum is σ = 5129892768. Its totient is φ = 3389904000.

The previous prime is 4256122643. The next prime is 4256122681. The reversal of 4256122655 is 5562216524.

It is a happy number.

It is not a de Polignac number, because 4256122655 - 2⁸ = 4256122399 is a prime.

It is a super-2 number, since 2×4256122655² = 36229160108808498050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1200185 + ... + 1203725.

It is an arithmetic number, because the mean of its divisors is an integer number (320618298).

Almost surely, 2^4256122655 is an apocalyptic number.

4256122655 is a deficient number, since it is larger than the sum of its proper divisors (873770113).

4256122655 is a wasteful number, since it uses less digits than its factorization.

4256122655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4538.

The product of its digits is 144000, while the sum is 38.

The square root of 4256122655 is about 65238.9657719986. The cubic root of 4256122655 is about 1620.5833715433.

The spelling of 4256122655 in words is "four billion, two hundred fifty-six million, one hundred twenty-two thousand, six hundred fifty-five".