2563227881 has 2 divisors, whose sum is σ = 2563227882. Its totient is φ = 2563227880.

The previous prime is 2563227859. The next prime is 2563227899. The reversal of 2563227881 is 1887223652.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1782528400 + 780699481 = 42220^2 + 27941^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2563227881 is a prime.

It is a super-2 number, since 2×2563227881² = 13140274339871500322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2563227841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1281613940 + 1281613941.

It is an arithmetic number, because the mean of its divisors is an integer number (1281613941).

Almost surely, 2^2563227881 is an apocalyptic number.

It is an amenable number.

2563227881 is a deficient number, since it is larger than the sum of its proper divisors (1).

2563227881 is an equidigital number, since it uses as much as digits as its factorization.

2563227881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 322560, while the sum is 44.

The square root of 2563227881 is about 50628.3308138832. The cubic root of 2563227881 is about 1368.5554740728. Note that the first 3 decimals are identical.

The spelling of 2563227881 in words is "two billion, five hundred sixty-three million, two hundred twenty-seven thousand, eight hundred eighty-one".