2564606 has 16 divisors (see below), whose sum is σ = 4295808. Its totient is φ = 1138200.

The previous prime is 2564593. The next prime is 2564609. The reversal of 2564606 is 6064652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2564609) by changing a digit.

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, 410 + ... + 2301.

It is an arithmetic number, because the mean of its divisors is an integer number (268488).

2^2564606 is an apocalyptic number.

2564606 is a deficient number, since it is larger than the sum of its proper divisors (1731202).

2564606 is a wasteful number, since it uses less digits than its factorization.

2564606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2767.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 2564606 is about 1601.4387281442. The cubic root of 2564606 is about 136.8800697996.

The spelling of 2564606 in words is "two million, five hundred sixty-four thousand, six hundred six".