2585973491 has 2 divisors, whose sum is σ = 2585973492. Its totient is φ = 2585973490.

The previous prime is 2585973463. The next prime is 2585973497. The reversal of 2585973491 is 1943795852.

2585973491 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 2585973491 - 2¹⁴ = 2585957107 is a prime.

It is not a weakly prime, because it can be changed into another prime (2585973497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1292986745 + 1292986746.

It is an arithmetic number, because the mean of its divisors is an integer number (1292986746).

Almost surely, 2^2585973491 is an apocalyptic number.

2585973491 is a deficient number, since it is larger than the sum of its proper divisors (1).

2585973491 is an equidigital number, since it uses as much as digits as its factorization.

2585973491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2721600, while the sum is 53.

The square root of 2585973491 is about 50852.4678948820. The cubic root of 2585973491 is about 1372.5916614132.

The spelling of 2585973491 in words is "two billion, five hundred eighty-five million, nine hundred seventy-three thousand, four hundred ninety-one".