2505311 has 2 divisors, whose sum is σ = 2505312. Its totient is φ = 2505310.

The previous prime is 2505301. The next prime is 2505337. The reversal of 2505311 is 1135052.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2505311 - 2⁶ = 2505247 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2505311.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2505301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1252655 + 1252656.

It is an arithmetic number, because the mean of its divisors is an integer number (1252656).

2^2505311 is an apocalyptic number.

2505311 is a deficient number, since it is larger than the sum of its proper divisors (1).

2505311 is an equidigital number, since it uses as much as digits as its factorization.

2505311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 2505311 is about 1582.8174247209. The cubic root of 2505311 is about 135.8169213321.

The spelling of 2505311 in words is "two million, five hundred five thousand, three hundred eleven".