2587241591 has 4 divisors (see below), whose sum is σ = 2822445384. Its totient is φ = 2352037800.

The previous prime is 2587241561. The next prime is 2587241599. The reversal of 2587241591 is 1951427852.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2587241591 is a prime.

It is a super-2 number, since 2×2587241591² = 13387638100400422562, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2587241599) 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 in 3 ways as a sum of consecutive naturals, for example, 117601880 + ... + 117601901.

It is an arithmetic number, because the mean of its divisors is an integer number (705611346).

Almost surely, 2^2587241591 is an apocalyptic number.

2587241591 is a deficient number, since it is larger than the sum of its proper divisors (235203793).

2587241591 is a wasteful number, since it uses less digits than its factorization.

2587241591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235203792.

The product of its digits is 201600, while the sum is 44.

The square root of 2587241591 is about 50864.9347881229. The cubic root of 2587241591 is about 1372.8159868694.

The spelling of 2587241591 in words is "two billion, five hundred eighty-seven million, two hundred forty-one thousand, five hundred ninety-one".