259017887 has 2 divisors, whose sum is σ = 259017888. Its totient is φ = 259017886.

The previous prime is 259017757. The next prime is 259017901. The reversal of 259017887 is 788710952.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 259017887 - 2¹⁴ = 259001503 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (259017487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129508943 + 129508944.

It is an arithmetic number, because the mean of its divisors is an integer number (129508944).

Almost surely, 2^259017887 is an apocalyptic number.

259017887 is a deficient number, since it is larger than the sum of its proper divisors (1).

259017887 is an equidigital number, since it uses as much as digits as its factorization.

259017887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 282240, while the sum is 47.

The square root of 259017887 is about 16094.0326518868. The cubic root of 259017887 is about 637.4457824966.

The spelling of 259017887 in words is "two hundred fifty-nine million, seventeen thousand, eight hundred eighty-seven".