4255220231 has 4 divisors (see below), whose sum is σ = 4255491864. Its totient is φ = 4254948600.

The previous prime is 4255220171. The next prime is 4255220237. The reversal of 4255220231 is 1320225524.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4255220231 is a prime.

It is a super-2 number, since 2×4255220231² = 36213798428623386722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4255220231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4255220237) 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, 110780 + ... + 144161.

It is an arithmetic number, because the mean of its divisors is an integer number (1063872966).

Almost surely, 2^4255220231 is an apocalyptic number.

4255220231 is a deficient number, since it is larger than the sum of its proper divisors (271633).

4255220231 is a wasteful number, since it uses less digits than its factorization.

4255220231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271632.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 4255220231 is about 65232.0491093144. The cubic root of 4255220231 is about 1620.4688262306.

Adding to 4255220231 its reverse (1320225524), we get a palindrome (5575445755).

The spelling of 4255220231 in words is "four billion, two hundred fifty-five million, two hundred twenty thousand, two hundred thirty-one".