2255260981 has 2 divisors, whose sum is σ = 2255260982. Its totient is φ = 2255260980.

The previous prime is 2255260957. The next prime is 2255261039. The reversal of 2255260981 is 1890625522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1731308881 + 523952100 = 41609^2 + 22890^2 .

It is a cyclic number.

It is not a de Polignac number, because 2255260981 - 2⁵ = 2255260949 is a prime.

It is a super-2 number, since 2×2255260981² = 10172404184842164722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2255260921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1127630490 + 1127630491.

It is an arithmetic number, because the mean of its divisors is an integer number (1127630491).

Almost surely, 2^2255260981 is an apocalyptic number.

It is an amenable number.

2255260981 is a deficient number, since it is larger than the sum of its proper divisors (1).

2255260981 is an equidigital number, since it uses as much as digits as its factorization.

2255260981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86400, while the sum is 40.

The square root of 2255260981 is about 47489.5881325581. The cubic root of 2255260981 is about 1311.3912110633.

The spelling of 2255260981 in words is "two billion, two hundred fifty-five million, two hundred sixty thousand, nine hundred eighty-one".