2528791 has 2 divisors, whose sum is σ = 2528792. Its totient is φ = 2528790.

The previous prime is 2528783. The next prime is 2528809. The reversal of 2528791 is 1978252.

2528791 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2528791 - 2³ = 2528783 is a prime.

It is an Ulam number.

2528791 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2528891) 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, 1264395 + 1264396.

It is an arithmetic number, because the mean of its divisors is an integer number (1264396).

2^2528791 is an apocalyptic number.

2528791 is a deficient number, since it is larger than the sum of its proper divisors (1).

2528791 is an equidigital number, since it uses as much as digits as its factorization.

2528791 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 34.

The square root of 2528791 is about 1590.2172807513. The cubic root of 2528791 is about 136.2398988107.

The spelling of 2528791 in words is "two million, five hundred twenty-eight thousand, seven hundred ninety-one".