5209459 has 4 divisors (see below), whose sum is σ = 5228280. Its totient is φ = 5190640.

The previous prime is 5209453. The next prime is 5209471. The reversal of 5209459 is 9549025.

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 5209459 - 2¹³ = 5201267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5209453) 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, 8989 + ... + 9550.

It is an arithmetic number, because the mean of its divisors is an integer number (1307070).

Almost surely, 2^5209459 is an apocalyptic number.

5209459 is a deficient number, since it is larger than the sum of its proper divisors (18821).

5209459 is a wasteful number, since it uses less digits than its factorization.

5209459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18820.

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 5209459 is about 2282.4239308244. The cubic root of 5209459 is about 173.3528055869.

The spelling of 5209459 in words is "five million, two hundred nine thousand, four hundred fifty-nine".