259581089 has 4 divisors (see below), whose sum is σ = 262708656. Its totient is φ = 256453524.

The previous prime is 259581071. The next prime is 259581103. The reversal of 259581089 is 980185952.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-259581089 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (259581019) 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, 1563659 + ... + 1563824.

It is an arithmetic number, because the mean of its divisors is an integer number (65677164).

Almost surely, 2^259581089 is an apocalyptic number.

It is an amenable number.

259581089 is a deficient number, since it is larger than the sum of its proper divisors (3127567).

259581089 is an equidigital number, since it uses as much as digits as its factorization.

259581089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3127566.

The product of its (nonzero) digits is 259200, while the sum is 47.

The square root of 259581089 is about 16111.5203813917. The cubic root of 259581089 is about 637.9074634120.

The spelling of 259581089 in words is "two hundred fifty-nine million, five hundred eighty-one thousand, eighty-nine".