2505229 has 4 divisors (see below), whose sum is σ = 2614176. Its totient is φ = 2396284.

The previous prime is 2505227. The next prime is 2505247. The reversal of 2505229 is 9225052.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2505229 - 2¹ = 2505227 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2505227) 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, 54439 + ... + 54484.

It is an arithmetic number, because the mean of its divisors is an integer number (653544).

2^2505229 is an apocalyptic number.

It is an amenable number.

2505229 is a deficient number, since it is larger than the sum of its proper divisors (108947).

2505229 is a wasteful number, since it uses less digits than its factorization.

2505229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108946.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 2505229 is about 1582.7915213319. The cubic root of 2505229 is about 135.8154395321.

The spelling of 2505229 in words is "two million, five hundred five thousand, two hundred twenty-nine".