259964567 has 4 divisors (see below), whose sum is σ = 265495776. Its totient is φ = 254433360.

The previous prime is 259964557. The next prime is 259964581. The reversal of 259964567 is 765469952.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 259964567 - 2¹² = 259960471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (259964557) 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, 2765534 + ... + 2765627.

It is an arithmetic number, because the mean of its divisors is an integer number (66373944).

Almost surely, 2^259964567 is an apocalyptic number.

259964567 is a deficient number, since it is larger than the sum of its proper divisors (5531209).

259964567 is an equidigital number, since it uses as much as digits as its factorization.

259964567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5531208.

The product of its digits is 4082400, while the sum is 53.

The square root of 259964567 is about 16123.4167284729. The cubic root of 259964567 is about 638.2214348156.

The spelling of 259964567 in words is "two hundred fifty-nine million, nine hundred sixty-four thousand, five hundred sixty-seven".