2564906 has 8 divisors (see below), whose sum is σ = 3885024. Its totient is φ = 1269900.

The previous prime is 2564899. The next prime is 2564917. The reversal of 2564906 is 6094652.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6020 + ... + 6431.

It is an arithmetic number, because the mean of its divisors is an integer number (485628).

2^2564906 is an apocalyptic number.

2564906 is a deficient number, since it is larger than the sum of its proper divisors (1320118).

2564906 is a wasteful number, since it uses less digits than its factorization.

2564906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12556.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 2564906 is about 1601.5323911804. The cubic root of 2564906 is about 136.8854068663.

The spelling of 2564906 in words is "two million, five hundred sixty-four thousand, nine hundred six".