2591056111 has 4 divisors (see below), whose sum is σ = 2961206992. Its totient is φ = 2220905232.

The previous prime is 2591056109. The next prime is 2591056123. The reversal of 2591056111 is 1116501952.

2591056111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2591056111 - 2¹ = 2591056109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2591056511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185075430 + ... + 185075443.

It is an arithmetic number, because the mean of its divisors is an integer number (740301748).

Almost surely, 2^2591056111 is an apocalyptic number.

2591056111 is a deficient number, since it is larger than the sum of its proper divisors (370150881).

2591056111 is an equidigital number, since it uses as much as digits as its factorization.

2591056111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370150880.

The product of its (nonzero) digits is 2700, while the sum is 31.

The square root of 2591056111 is about 50902.4175359088. The cubic root of 2591056111 is about 1373.4903295883.

The spelling of 2591056111 in words is "two billion, five hundred ninety-one million, fifty-six thousand, one hundred eleven".