2501987 has 2 divisors, whose sum is σ = 2501988. Its totient is φ = 2501986.

The previous prime is 2501959. The next prime is 2501999. The reversal of 2501987 is 7891052.

2501987 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 not a de Polignac number, because 2501987 - 2⁶ = 2501923 is a prime.

It is not a weakly prime, because it can be changed into another prime (2501957) 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, 1250993 + 1250994.

It is an arithmetic number, because the mean of its divisors is an integer number (1250994).

2^2501987 is an apocalyptic number.

2501987 is a deficient number, since it is larger than the sum of its proper divisors (1).

2501987 is an equidigital number, since it uses as much as digits as its factorization.

2501987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 2501987 is about 1581.7670498528. The cubic root of 2501987 is about 135.7568282931.

The spelling of 2501987 in words is "two million, five hundred one thousand, nine hundred eighty-seven".