2265516887 has 2 divisors, whose sum is σ = 2265516888. Its totient is φ = 2265516886.

The previous prime is 2265516863. The next prime is 2265516941. The reversal of 2265516887 is 7886155622.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2265516887 - 2³⁰ = 1191775063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2265516287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1132758443 + 1132758444.

It is an arithmetic number, because the mean of its divisors is an integer number (1132758444).

Almost surely, 2^2265516887 is an apocalyptic number.

2265516887 is a deficient number, since it is larger than the sum of its proper divisors (1).

2265516887 is an equidigital number, since it uses as much as digits as its factorization.

2265516887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1612800, while the sum is 50.

The square root of 2265516887 is about 47597.4462235108. The cubic root of 2265516887 is about 1313.3760765304.

The spelling of 2265516887 in words is "two billion, two hundred sixty-five million, five hundred sixteen thousand, eight hundred eighty-seven".