2564323 has 2 divisors, whose sum is σ = 2564324. Its totient is φ = 2564322.

The previous prime is 2564321. The next prime is 2564327. The reversal of 2564323 is 3234652.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2564323 - 2¹ = 2564321 is a prime.

Together with 2564321, it forms a pair of twin primes.

It is a d-powerful number, because it can be written as 2¹⁴ + 5⁶ + 6⁸ + 4³ + 3¹⁰ + 2¹⁸ + 3¹² .

It is not a weakly prime, because it can be changed into another prime (2564321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1282161 + 1282162.

It is an arithmetic number, because the mean of its divisors is an integer number (1282162).

2^2564323 is an apocalyptic number.

2564323 is a deficient number, since it is larger than the sum of its proper divisors (1).

2564323 is an equidigital number, since it uses as much as digits as its factorization.

2564323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 25.

The square root of 2564323 is about 1601.3503676585. The cubic root of 2564323 is about 136.8750347852.

Adding to 2564323 its reverse (3234652), we get a palindrome (5798975).

The spelling of 2564323 in words is "two million, five hundred sixty-four thousand, three hundred twenty-three".