2566495 has 8 divisors (see below), whose sum is σ = 3094416. Its totient is φ = 2043456.

The previous prime is 2566489. The next prime is 2566513. The reversal of 2566495 is 5946652.

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

It is a cyclic number.

It is not a de Polignac number, because 2566495 - 2⁷ = 2566367 is a prime.

It is a Duffinian number.

2566495 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64 + ... + 2266.

It is an arithmetic number, because the mean of its divisors is an integer number (386802).

2^2566495 is an apocalyptic number.

2566495 is a deficient number, since it is larger than the sum of its proper divisors (527921).

2566495 is a wasteful number, since it uses less digits than its factorization.

2566495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2441.

The product of its digits is 64800, while the sum is 37.

The square root of 2566495 is about 1602.0284017457. The cubic root of 2566495 is about 136.9136685921.

The spelling of 2566495 in words is "two million, five hundred sixty-six thousand, four hundred ninety-five".