2500566 has 8 divisors (see below), whose sum is σ = 5001144. Its totient is φ = 833520.

The previous prime is 2500559. The next prime is 2500591. The reversal of 2500566 is 6650052.

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

2500566 is an admirable number.

It is a congruent number.

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, 208375 + ... + 208386.

It is an arithmetic number, because the mean of its divisors is an integer number (625143).

2^2500566 is an apocalyptic number.

2500566 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2500566 is a wasteful number, since it uses less digits than its factorization.

2500566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416766.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 2500566 is about 1581.3178048704. The cubic root of 2500566 is about 135.7311224594.

The spelling of 2500566 in words is "two million, five hundred thousand, five hundred sixty-six".