2261022563 has 2 divisors, whose sum is σ = 2261022564. Its totient is φ = 2261022562.

The previous prime is 2261022493. The next prime is 2261022607. The reversal of 2261022563 is 3652201622.

2261022563 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2261022563 - 2¹⁴ = 2261006179 is a prime.

It is a super-2 number, since 2×2261022563² = 10224446060790177938, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2261082563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1130511281 + 1130511282.

It is an arithmetic number, because the mean of its divisors is an integer number (1130511282).

Almost surely, 2^2261022563 is an apocalyptic number.

2261022563 is a deficient number, since it is larger than the sum of its proper divisors (1).

2261022563 is an equidigital number, since it uses as much as digits as its factorization.

2261022563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 2261022563 is about 47550.2109669347. The cubic root of 2261022563 is about 1312.5070113972.

The spelling of 2261022563 in words is "two billion, two hundred sixty-one million, twenty-two thousand, five hundred sixty-three".