2503871 has 2 divisors, whose sum is σ = 2503872. Its totient is φ = 2503870.

The previous prime is 2503859. The next prime is 2503873. The reversal of 2503871 is 1783052.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2503871 - 2¹⁸ = 2241727 is a prime.

Together with 2503873, it forms a pair of twin primes.

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 2503871.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2503873) 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, 1251935 + 1251936.

It is an arithmetic number, because the mean of its divisors is an integer number (1251936).

2^2503871 is an apocalyptic number.

2503871 is a deficient number, since it is larger than the sum of its proper divisors (1).

2503871 is an equidigital number, since it uses as much as digits as its factorization.

2503871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 2503871 is about 1582.3624742770. The cubic root of 2503871 is about 135.7908947763.

The spelling of 2503871 in words is "two million, five hundred three thousand, eight hundred seventy-one".