2591525091 has 4 divisors (see below), whose sum is σ = 3455366792. Its totient is φ = 1727683392.

The previous prime is 2591525081. The next prime is 2591525107. The reversal of 2591525091 is 1905251952.

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

It is not a de Polignac number, because 2591525091 - 2⁵ = 2591525059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2591525021) 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, 431920846 + ... + 431920851.

It is an arithmetic number, because the mean of its divisors is an integer number (863841698).

Almost surely, 2^2591525091 is an apocalyptic number.

2591525091 is a deficient number, since it is larger than the sum of its proper divisors (863841701).

2591525091 is an equidigital number, since it uses as much as digits as its factorization.

2591525091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863841700.

The product of its (nonzero) digits is 40500, while the sum is 39.

The square root of 2591525091 is about 50907.0239849080. The cubic root of 2591525091 is about 1373.5731916348.

The spelling of 2591525091 in words is "two billion, five hundred ninety-one million, five hundred twenty-five thousand, ninety-one".