2563591087 has 2 divisors, whose sum is σ = 2563591088. Its totient is φ = 2563591086.

The previous prime is 2563591081. The next prime is 2563591153. The reversal of 2563591087 is 7801953652.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2563591087 is a prime.

It is a super-2 number, since 2×2563591087² = 13143998522691683138, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2563591081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1281795543 + 1281795544.

It is an arithmetic number, because the mean of its divisors is an integer number (1281795544).

Almost surely, 2^2563591087 is an apocalyptic number.

2563591087 is a deficient number, since it is larger than the sum of its proper divisors (1).

2563591087 is an equidigital number, since it uses as much as digits as its factorization.

2563591087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 453600, while the sum is 46.

The square root of 2563591087 is about 50631.9176705761. The cubic root of 2563591087 is about 1368.6201118533.

The spelling of 2563591087 in words is "two billion, five hundred sixty-three million, five hundred ninety-one thousand, eighty-seven".