260000591 has 4 divisors (see below), whose sum is σ = 267027672. Its totient is φ = 252973512.

The previous prime is 260000561. The next prime is 260000593. The reversal of 260000591 is 195000062.

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-260000591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260000593) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3513485 + ... + 3513558.

It is an arithmetic number, because the mean of its divisors is an integer number (66756918).

Almost surely, 2^260000591 is an apocalyptic number.

260000591 is a deficient number, since it is larger than the sum of its proper divisors (7027081).

260000591 is an equidigital number, since it uses as much as digits as its factorization.

260000591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7027080.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 260000591 is about 16124.5338227187. The cubic root of 260000591 is about 638.2509134831.

The spelling of 260000591 in words is "two hundred sixty million, five hundred ninety-one", and thus it is an aban number.