259259859 has 12 divisors (see below), whose sum is σ = 388356696. Its totient is φ = 172839744.

The previous prime is 259259839. The next prime is 259259893. The reversal of 259259859 is 958952952.

It is not a de Polignac number, because 259259859 - 2²¹ = 257162707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (259259839) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 533214 + ... + 533699.

It is an arithmetic number, because the mean of its divisors is an integer number (32363058).

Almost surely, 2^259259859 is an apocalyptic number.

259259859 is a deficient number, since it is larger than the sum of its proper divisors (129096837).

259259859 is an equidigital number, since it uses as much as digits as its factorization.

259259859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066928 (or 1066916 counting only the distinct ones).

The product of its digits is 2916000, while the sum is 54.

The square root of 259259859 is about 16101.5483416968. The cubic root of 259259859 is about 637.6442192745.

The spelling of 259259859 in words is "two hundred fifty-nine million, two hundred fifty-nine thousand, eight hundred fifty-nine".