2523987091 has 4 divisors (see below), whose sum is σ = 2577688992. Its totient is φ = 2470285192.

The previous prime is 2523987061. The next prime is 2523987121. The reversal of 2523987091 is 1907893252.

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

It is an interprime number because it is at equal distance from previous prime (2523987061) and next prime (2523987121).

It is a cyclic number.

It is not a de Polignac number, because 2523987091 - 2⁹ = 2523986579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2523987061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26850880 + ... + 26850973.

It is an arithmetic number, because the mean of its divisors is an integer number (644422248).

Almost surely, 2^2523987091 is an apocalyptic number.

2523987091 is a deficient number, since it is larger than the sum of its proper divisors (53701901).

2523987091 is an equidigital number, since it uses as much as digits as its factorization.

2523987091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53701900.

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 2523987091 is about 50239.2982733637. The cubic root of 2523987091 is about 1361.5357311167.

The spelling of 2523987091 in words is "two billion, five hundred twenty-three million, nine hundred eighty-seven thousand, ninety-one".