4256522111 has 4 divisors (see below), whose sum is σ = 4326301224. Its totient is φ = 4186743000.

The previous prime is 4256521981. The next prime is 4256522189. The reversal of 4256522111 is 1112256524.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4256522111 - 2¹⁴ = 4256505727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4256522411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34889465 + ... + 34889586.

It is an arithmetic number, because the mean of its divisors is an integer number (1081575306).

Almost surely, 2^4256522111 is an apocalyptic number.

4256522111 is a deficient number, since it is larger than the sum of its proper divisors (69779113).

4256522111 is an equidigital number, since it uses as much as digits as its factorization.

4256522111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69779112.

The product of its digits is 4800, while the sum is 29.

The square root of 4256522111 is about 65242.0271834038. The cubic root of 4256522111 is about 1620.6340696045.

Adding to 4256522111 its reverse (1112256524), we get a palindrome (5368778635).

The spelling of 4256522111 in words is "four billion, two hundred fifty-six million, five hundred twenty-two thousand, one hundred eleven".