2255311231 has 4 divisors (see below), whose sum is σ = 2310318864. Its totient is φ = 2200303600.

The previous prime is 2255311211. The next prime is 2255311249. The reversal of 2255311231 is 1321135522.

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 2255311231 - 2⁹ = 2255310719 is a prime.

It is a super-2 number, since 2×2255311231² = 10172857497349470722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2255311196 and 2255311205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2255311211) 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, 27503755 + ... + 27503836.

It is an arithmetic number, because the mean of its divisors is an integer number (577579716).

Almost surely, 2^2255311231 is an apocalyptic number.

2255311231 is a deficient number, since it is larger than the sum of its proper divisors (55007633).

2255311231 is an equidigital number, since it uses as much as digits as its factorization.

2255311231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55007632.

The product of its digits is 1800, while the sum is 25.

The square root of 2255311231 is about 47490.1171929487. The cubic root of 2255311231 is about 1311.4009507962.

Adding to 2255311231 its reverse (1321135522), we get a palindrome (3576446753).

The spelling of 2255311231 in words is "two billion, two hundred fifty-five million, three hundred eleven thousand, two hundred thirty-one".