2265626281 has 2 divisors, whose sum is σ = 2265626282. Its totient is φ = 2265626280.

The previous prime is 2265626273. The next prime is 2265626303. The reversal of 2265626281 is 1826265622.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2094435225 + 171191056 = 45765^2 + 13084^2 .

It is a cyclic number.

It is not a de Polignac number, because 2265626281 - 2³ = 2265626273 is a prime.

It is a super-2 number, since 2×2265626281² = 10266124890315781922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2265626221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1132813140 + 1132813141.

It is an arithmetic number, because the mean of its divisors is an integer number (1132813141).

Almost surely, 2^2265626281 is an apocalyptic number.

It is an amenable number.

2265626281 is a deficient number, since it is larger than the sum of its proper divisors (1).

2265626281 is an equidigital number, since it uses as much as digits as its factorization.

2265626281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 138240, while the sum is 40.

The square root of 2265626281 is about 47598.5953679308. The cubic root of 2265626281 is about 1313.3972156577.

The spelling of 2265626281 in words is "two billion, two hundred sixty-five million, six hundred twenty-six thousand, two hundred eighty-one".