4256172011 has 16 divisors (see below), whose sum is σ = 5466123264. Its totient is φ = 3221105184.

The previous prime is 4256171987. The next prime is 4256172047. The reversal of 4256172011 is 1102716524.

It is a cyclic number.

It is not a de Polignac number, because 4256172011 - 2⁶ = 4256171947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4256172061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1014671 + ... + 1018856.

It is an arithmetic number, because the mean of its divisors is an integer number (341632704).

Almost surely, 2^4256172011 is an apocalyptic number.

4256172011 is a deficient number, since it is larger than the sum of its proper divisors (1209951253).

4256172011 is a wasteful number, since it uses less digits than its factorization.

4256172011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2033570.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 4256172011 is about 65239.3440417667. The cubic root of 4256172011 is about 1620.5896358681.

Adding to 4256172011 its reverse (1102716524), we get a palindrome (5358888535).

The spelling of 4256172011 in words is "four billion, two hundred fifty-six million, one hundred seventy-two thousand, eleven".