4256559361 has 8 divisors (see below), whose sum is σ = 4510737000. Its totient is φ = 4009541760.

The previous prime is 4256559317. The next prime is 4256559383. The reversal of 4256559361 is 1639556524.

It can be written as a sum of positive squares in 4 ways, for example, as 683508736 + 3573050625 = 26144^2 + 59775^2 .

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 4256559361 - 2¹¹ = 4256557313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4256559311) 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, 1788786 + ... + 1791163.

It is an arithmetic number, because the mean of its divisors is an integer number (563842125).

Almost surely, 2^4256559361 is an apocalyptic number.

4256559361 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

4256559361 is a deficient number, since it is larger than the sum of its proper divisors (254177639).

4256559361 is a wasteful number, since it uses less digits than its factorization.

4256559361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3580019.

The product of its digits is 972000, while the sum is 46.

The square root of 4256559361 is about 65242.3126582742. The cubic root of 4256559361 is about 1620.6387971294.

It can be divided in two parts, 42565 and 59361, that added together give a triangular number (101926 = T₄₅₁).

The spelling of 4256559361 in words is "four billion, two hundred fifty-six million, five hundred fifty-nine thousand, three hundred sixty-one".