2564259 has 8 divisors (see below), whose sum is σ = 3599040. Its totient is φ = 1619496.

The previous prime is 2564251. The next prime is 2564279. The reversal of 2564259 is 9524652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2564259 - 2³ = 2564251 is a prime.

It is a d-powerful number, because it can be written as 2¹¹ + 5⁷ + 6⁶ + 4⁹ + 2²¹ + 5⁷ + 9 .

2564259 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2564251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22437 + ... + 22550.

It is an arithmetic number, because the mean of its divisors is an integer number (449880).

2^2564259 is an apocalyptic number.

2564259 is a deficient number, since it is larger than the sum of its proper divisors (1034781).

2564259 is a wasteful number, since it uses less digits than its factorization.

2564259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45009.

The product of its digits is 21600, while the sum is 33.

The square root of 2564259 is about 1601.3303843992. The cubic root of 2564259 is about 136.8738960733.

The spelling of 2564259 in words is "two million, five hundred sixty-four thousand, two hundred fifty-nine".