2502991 has 2 divisors, whose sum is σ = 2502992. Its totient is φ = 2502990.

The previous prime is 2502953. The next prime is 2503001. The reversal of 2502991 is 1992052.

2502991 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2502991 is a prime.

2502991 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2502931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1251495 + 1251496.

It is an arithmetic number, because the mean of its divisors is an integer number (1251496).

2^2502991 is an apocalyptic number.

2502991 is a deficient number, since it is larger than the sum of its proper divisors (1).

2502991 is an equidigital number, since it uses as much as digits as its factorization.

2502991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 2502991 is about 1582.0843846015. The cubic root of 2502991 is about 135.7749847461.

The spelling of 2502991 in words is "two million, five hundred two thousand, nine hundred ninety-one".