2509975 has 12 divisors (see below), whose sum is σ = 3352216. Its totient is φ = 1853280.

The previous prime is 2509963. The next prime is 2509981. The reversal of 2509975 is 5799052.

2509975 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2509975 - 2¹¹ = 2507927 is a prime.

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 11 ways as a sum of consecutive naturals, for example, 3537 + ... + 4186.

2^2509975 is an apocalyptic number.

2509975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2509975 is a deficient number, since it is larger than the sum of its proper divisors (842241).

2509975 is a wasteful number, since it uses less digits than its factorization.

2509975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7746 (or 7741 counting only the distinct ones).

The product of its (nonzero) digits is 28350, while the sum is 37.

The square root of 2509975 is about 1584.2900618258. The cubic root of 2509975 is about 135.9011500553.

The spelling of 2509975 in words is "two million, five hundred nine thousand, nine hundred seventy-five".