259442447 has 4 divisors (see below), whose sum is σ = 283028136. Its totient is φ = 235856760.

The previous prime is 259442431. The next prime is 259442453. The reversal of 259442447 is 744244952.

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 259442447 - 2⁴ = 259442431 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 (259442467) 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, 11792828 + ... + 11792849.

It is an arithmetic number, because the mean of its divisors is an integer number (70757034).

Almost surely, 2^259442447 is an apocalyptic number.

259442447 is a deficient number, since it is larger than the sum of its proper divisors (23585689).

259442447 is a wasteful number, since it uses less digits than its factorization.

259442447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23585688.

The product of its digits is 322560, while the sum is 41.

The square root of 259442447 is about 16107.2172332778. The cubic root of 259442447 is about 637.7938746076.

The spelling of 259442447 in words is "two hundred fifty-nine million, four hundred forty-two thousand, four hundred forty-seven".