2509015 has 4 divisors (see below), whose sum is σ = 3010824. Its totient is φ = 2007208.

The previous prime is 2508971. The next prime is 2509027. The reversal of 2509015 is 5109052.

2509015 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2509015 - 2¹⁹ = 1984727 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250897 + ... + 250906.

It is an arithmetic number, because the mean of its divisors is an integer number (752706).

2^2509015 is an apocalyptic number.

2509015 is a deficient number, since it is larger than the sum of its proper divisors (501809).

2509015 is an equidigital number, since it uses as much as digits as its factorization.

2509015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501808.

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 2509015 is about 1583.9870580279. The cubic root of 2509015 is about 135.8838216303.

The spelling of 2509015 in words is "two million, five hundred nine thousand, fifteen".