2505211 has 4 divisors (see below), whose sum is σ = 2518000. Its totient is φ = 2492424.

The previous prime is 2505193. The next prime is 2505227. The reversal of 2505211 is 1125052.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2505211 - 2¹⁵ = 2472443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2505271) 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, 6096 + ... + 6493.

It is an arithmetic number, because the mean of its divisors is an integer number (629500).

2^2505211 is an apocalyptic number.

2505211 is a deficient number, since it is larger than the sum of its proper divisors (12789).

2505211 is a wasteful number, since it uses less digits than its factorization.

2505211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12788.

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 2505211 is about 1582.7858351653. The cubic root of 2505211 is about 135.8151142547.

It can be divided in two parts, 25052 and 11, that multiplied together give a palindrome (275572).

The spelling of 2505211 in words is "two million, five hundred five thousand, two hundred eleven".