2564893 has 4 divisors (see below), whose sum is σ = 2597440. Its totient is φ = 2532348.

The previous prime is 2564857. The next prime is 2564899. The reversal of 2564893 is 3984652.

2564893 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2564893 - 2⁹ = 2564381 is a prime.

It is a super-2 number, since 2×2564893² = 13157352202898, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

2564893 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2564899) 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 3 ways as a sum of consecutive naturals, for example, 16155 + ... + 16312.

It is an arithmetic number, because the mean of its divisors is an integer number (649360).

2^2564893 is an apocalyptic number.

It is an amenable number.

2564893 is a deficient number, since it is larger than the sum of its proper divisors (32547).

2564893 is an equidigital number, since it uses as much as digits as its factorization.

2564893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32546.

The product of its digits is 51840, while the sum is 37.

The square root of 2564893 is about 1601.5283325624. The cubic root of 2564893 is about 136.8851756021.

The spelling of 2564893 in words is "two million, five hundred sixty-four thousand, eight hundred ninety-three".