2502209 has 2 divisors, whose sum is σ = 2502210. Its totient is φ = 2502208.

The previous prime is 2502197. The next prime is 2502211. The reversal of 2502209 is 9022052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2016400 + 485809 = 1420^2 + 697^2 .

It is a cyclic number.

It is not a de Polignac number, because 2502209 - 2⁸ = 2501953 is a prime.

It is a super-2 number, since 2×2502209² = 12522099759362, which contains 22 as substring.

Together with 2502211, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2502229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1251104 + 1251105.

It is an arithmetic number, because the mean of its divisors is an integer number (1251105).

2^2502209 is an apocalyptic number.

It is an amenable number.

2502209 is a deficient number, since it is larger than the sum of its proper divisors (1).

2502209 is an equidigital number, since it uses as much as digits as its factorization.

2502209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 2502209 is about 1581.8372229784. The cubic root of 2502209 is about 135.7608433852.

The spelling of 2502209 in words is "two million, five hundred two thousand, two hundred nine".