2529891 has 24 divisors (see below), whose sum is σ = 4499040. Its totient is φ = 1334016.

The previous prime is 2529881. The next prime is 2529893. The reversal of 2529891 is 1989252.

2529891 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2529891 - 2⁶ = 2529827 is a prime.

2529891 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2529893) 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 in 23 ways as a sum of consecutive naturals, for example, 726 + ... + 2363.

It is an arithmetic number, because the mean of its divisors is an integer number (187460).

2^2529891 is an apocalyptic number.

2529891 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2529891 is a deficient number, since it is larger than the sum of its proper divisors (1969149).

2529891 is a wasteful number, since it uses less digits than its factorization.

2529891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3115 (or 3112 counting only the distinct ones).

The product of its digits is 12960, while the sum is 36.

The square root of 2529891 is about 1590.5631078332. The cubic root of 2529891 is about 136.2596502998.

The spelling of 2529891 in words is "two million, five hundred twenty-nine thousand, eight hundred ninety-one".