2562566 has 4 divisors (see below), whose sum is σ = 3843852. Its totient is φ = 1281282.

The previous prime is 2562559. The next prime is 2562589. The reversal of 2562566 is 6652652.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 640640 + ... + 640643.

It is an arithmetic number, because the mean of its divisors is an integer number (960963).

2^2562566 is an apocalyptic number.

2562566 is a deficient number, since it is larger than the sum of its proper divisors (1281286).

2562566 is a wasteful number, since it uses less digits than its factorization.

2562566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1281285.

The product of its digits is 21600, while the sum is 32.

The square root of 2562566 is about 1600.8016741620. The cubic root of 2562566 is about 136.8437667036.

The spelling of 2562566 in words is "two million, five hundred sixty-two thousand, five hundred sixty-six".