259857013 has 16 divisors (see below), whose sum is σ = 292795776. Its totient is φ = 228824640.

The previous prime is 259856999. The next prime is 259857029. The reversal of 259857013 is 310758952.

It is a cyclic number.

It is not a de Polignac number, because 259857013 - 2²⁵ = 226302581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (259857613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138703 + ... + 140563.

It is an arithmetic number, because the mean of its divisors is an integer number (18299736).

Almost surely, 2^259857013 is an apocalyptic number.

259857013 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

259857013 is a deficient number, since it is larger than the sum of its proper divisors (32938763).

259857013 is a wasteful number, since it uses less digits than its factorization.

259857013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2364.

The product of its (nonzero) digits is 75600, while the sum is 40.

The square root of 259857013 is about 16120.0810481833. The cubic root of 259857013 is about 638.1334064897.

The spelling of 259857013 in words is "two hundred fifty-nine million, eight hundred fifty-seven thousand, thirteen".