259242953 has 4 divisors (see below), whose sum is σ = 260894340. Its totient is φ = 257591568.

The previous prime is 259242901. The next prime is 259242967. The reversal of 259242953 is 359242952.

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

It can be written as a sum of positive squares in 2 ways, for example, as 199459129 + 59783824 = 14123^2 + 7732^2 .

It is a cyclic number.

It is not a de Polignac number, because 259242953 - 2¹² = 259238857 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 259242953.

It is not an unprimeable number, because it can be changed into a prime (259242983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 825458 + ... + 825771.

It is an arithmetic number, because the mean of its divisors is an integer number (65223585).

Almost surely, 2^259242953 is an apocalyptic number.

It is an amenable number.

259242953 is a deficient number, since it is larger than the sum of its proper divisors (1651387).

259242953 is a wasteful number, since it uses less digits than its factorization.

259242953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1651386.

The product of its digits is 194400, while the sum is 41.

The square root of 259242953 is about 16101.0233525699. The cubic root of 259242953 is about 637.6303589883.

Subtracting 259242953 from its reverse (359242952), we obtain a palindrome (99999999).

The spelling of 259242953 in words is "two hundred fifty-nine million, two hundred forty-two thousand, nine hundred fifty-three".