2509039 has 4 divisors (see below), whose sum is σ = 2702056. Its totient is φ = 2316024.

The previous prime is 2509037. The next prime is 2509061. The reversal of 2509039 is 9309052.

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 2509039 - 2¹ = 2509037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2508998 and 2509016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2509037) 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, 96489 + ... + 96514.

It is an arithmetic number, because the mean of its divisors is an integer number (675514).

2^2509039 is an apocalyptic number.

2509039 is a deficient number, since it is larger than the sum of its proper divisors (193017).

2509039 is a wasteful number, since it uses less digits than its factorization.

2509039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193016.

The product of its (nonzero) digits is 2430, while the sum is 28.

The square root of 2509039 is about 1583.9946338293. The cubic root of 2509039 is about 135.8842548948.

The spelling of 2509039 in words is "two million, five hundred nine thousand, thirty-nine".