2564395 has 8 divisors (see below), whose sum is σ = 3087360. Its totient is φ = 2044800.

The previous prime is 2564381. The next prime is 2564407. The reversal of 2564395 is 5934652.

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

It is not a de Polignac number, because 2564395 - 2⁵ = 2564363 is a prime.

It is a super-2 number, since 2×2564395² = 13152243432050, which contains 22 as substring.

2564395 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2564395.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1366 + ... + 2644.

It is an arithmetic number, because the mean of its divisors is an integer number (385920).

2^2564395 is an apocalyptic number.

2564395 is a deficient number, since it is larger than the sum of its proper divisors (522965).

2564395 is a wasteful number, since it uses less digits than its factorization.

2564395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1685.

The product of its digits is 32400, while the sum is 34.

The square root of 2564395 is about 1601.3728485272. The cubic root of 2564395 is about 136.8763158134.

The spelling of 2564395 in words is "two million, five hundred sixty-four thousand, three hundred ninety-five".