259400047 has 4 divisors (see below), whose sum is σ = 261293616. Its totient is φ = 257506480.

The previous prime is 259400039. The next prime is 259400051. The reversal of 259400047 is 740004952.

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 259400047 - 2³ = 259400039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 259399991 and 259400018.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (259400077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 946579 + ... + 946852.

It is an arithmetic number, because the mean of its divisors is an integer number (65323404).

Almost surely, 2^259400047 is an apocalyptic number.

259400047 is a deficient number, since it is larger than the sum of its proper divisors (1893569).

259400047 is a wasteful number, since it uses less digits than its factorization.

259400047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1893568.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 259400047 is about 16105.9009993232. The cubic root of 259400047 is about 637.7591283869.

Adding to 259400047 its reverse (740004952), we get a palindrome (999404999).

The spelling of 259400047 in words is "two hundred fifty-nine million, four hundred thousand, forty-seven".