259499741 has 4 divisors (see below), whose sum is σ = 261241500. Its totient is φ = 257757984.

The previous prime is 259499719. The next prime is 259499761. The reversal of 259499741 is 147994952.

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 42055225 + 217444516 = 6485^2 + 14746^2 .

It is a cyclic number.

It is not a de Polignac number, because 259499741 - 2⁶ = 259499677 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 259499741.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (259499761) 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, 870656 + ... + 870953.

It is an arithmetic number, because the mean of its divisors is an integer number (65310375).

Almost surely, 2^259499741 is an apocalyptic number.

It is an amenable number.

259499741 is a deficient number, since it is larger than the sum of its proper divisors (1741759).

259499741 is a wasteful number, since it uses less digits than its factorization.

259499741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1741758.

The product of its digits is 816480, while the sum is 50.

The square root of 259499741 is about 16108.9956546024. The cubic root of 259499741 is about 637.8408202444.

The spelling of 259499741 in words is "two hundred fifty-nine million, four hundred ninety-nine thousand, seven hundred forty-one".