2509575 has 12 divisors (see below), whose sum is σ = 4149288. Its totient is φ = 1338400.

The previous prime is 2509571. The next prime is 2509597. The reversal of 2509575 is 5759052.

It is not a de Polignac number, because 2509575 - 2² = 2509571 is a prime.

It is a d-powerful number, because it can be written as 2¹³ + 5 + 0 + 9⁶ + 5 + 7⁵ + 5⁹ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2509571) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16656 + ... + 16805.

It is an arithmetic number, because the mean of its divisors is an integer number (345774).

2^2509575 is an apocalyptic number.

2509575 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2509575 is a deficient number, since it is larger than the sum of its proper divisors (1639713).

2509575 is a wasteful number, since it uses less digits than its factorization.

2509575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33474 (or 33469 counting only the distinct ones).

The product of its (nonzero) digits is 15750, while the sum is 33.

The square root of 2509575 is about 1584.1638172866. The cubic root of 2509575 is about 135.8939304153.

The spelling of 2509575 in words is "two million, five hundred nine thousand, five hundred seventy-five".