2587292261 has 2 divisors, whose sum is σ = 2587292262. Its totient is φ = 2587292260.

The previous prime is 2587292251. The next prime is 2587292291. The reversal of 2587292261 is 1622927852.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1747741636 + 839550625 = 41806^2 + 28975^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2587292261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2587292251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1293646130 + 1293646131.

It is an arithmetic number, because the mean of its divisors is an integer number (1293646131).

Almost surely, 2^2587292261 is an apocalyptic number.

It is an amenable number.

2587292261 is a deficient number, since it is larger than the sum of its proper divisors (1).

2587292261 is an equidigital number, since it uses as much as digits as its factorization.

2587292261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 44.

The square root of 2587292261 is about 50865.4328694842. The cubic root of 2587292261 is about 1372.8249488120.

The spelling of 2587292261 in words is "two billion, five hundred eighty-seven million, two hundred ninety-two thousand, two hundred sixty-one".