259009497 has 24 divisors (see below), whose sum is σ = 379937376. Its totient is φ = 170009856.

The previous prime is 259009481. The next prime is 259009519. The reversal of 259009497 is 794900952.

It is not a de Polignac number, because 259009497 - 2⁴ = 259009481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (259009097) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 197518 + ... + 198824.

It is an arithmetic number, because the mean of its divisors is an integer number (15830724).

Almost surely, 2^259009497 is an apocalyptic number.

It is an amenable number.

259009497 is a deficient number, since it is larger than the sum of its proper divisors (120927879).

259009497 is a wasteful number, since it uses less digits than its factorization.

259009497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1637 (or 1634 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The square root of 259009497 is about 16093.7719941597. The cubic root of 259009497 is about 637.4388997958.

The spelling of 259009497 in words is "two hundred fifty-nine million, nine thousand, four hundred ninety-seven".