2509201 has 4 divisors (see below), whose sum is σ = 2512692. Its totient is φ = 2505712.

The previous prime is 2509181. The next prime is 2509207. The reversal of 2509201 is 1029052.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 409600 + 2099601 = 640^2 + 1449^2 .

It is a cyclic number.

It is not a de Polignac number, because 2509201 - 2⁹ = 2508689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2509207) 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, 226 + ... + 2251.

It is an arithmetic number, because the mean of its divisors is an integer number (628173).

2^2509201 is an apocalyptic number.

It is an amenable number.

2509201 is a deficient number, since it is larger than the sum of its proper divisors (3491).

2509201 is a wasteful number, since it uses less digits than its factorization.

2509201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3490.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 2509201 is about 1584.0457695408. The cubic root of 2509201 is about 135.8871793579.

The spelling of 2509201 in words is "two million, five hundred nine thousand, two hundred one".