259994887 has 8 divisors (see below), whose sum is σ = 265755600. Its totient is φ = 254279424.

The previous prime is 259994881. The next prime is 259994909. The reversal of 259994887 is 788499952.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 259994887 - 2⁷ = 259994759 is a prime.

It is a super-2 number, since 2×259994887² = 135194682532285538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (259994881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 439 + ... + 22807.

It is an arithmetic number, because the mean of its divisors is an integer number (33219450).

Almost surely, 2^259994887 is an apocalyptic number.

259994887 is a deficient number, since it is larger than the sum of its proper divisors (5760713).

259994887 is a wasteful number, since it uses less digits than its factorization.

259994887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22625.

The product of its digits is 13063680, while the sum is 61.

The square root of 259994887 is about 16124.3569484181. The cubic root of 259994887 is about 638.2462460452.

The spelling of 259994887 in words is "two hundred fifty-nine million, nine hundred ninety-four thousand, eight hundred eighty-seven".