259490613 has 4 divisors (see below), whose sum is σ = 345987488. Its totient is φ = 172993740.

The previous prime is 259490611. The next prime is 259490683. The reversal of 259490613 is 316094952.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 259490613 - 2¹ = 259490611 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 (259490611) 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, 43248433 + ... + 43248438.

It is an arithmetic number, because the mean of its divisors is an integer number (86496872).

Almost surely, 2^259490613 is an apocalyptic number.

It is an amenable number.

259490613 is a deficient number, since it is larger than the sum of its proper divisors (86496875).

259490613 is an equidigital number, since it uses as much as digits as its factorization.

259490613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86496874.

The product of its (nonzero) digits is 58320, while the sum is 39.

The square root of 259490613 is about 16108.7123321512. The cubic root of 259490613 is about 637.8333413940.

The spelling of 259490613 in words is "two hundred fifty-nine million, four hundred ninety thousand, six hundred thirteen".