2566590 has 32 divisors (see below), whose sum is σ = 6634656. Its totient is φ = 631680.

The previous prime is 2566589. The next prime is 2566591. The reversal of 2566590 is 956652.

It is an interprime number because it is at equal distance from previous prime (2566589) and next prime (2566591).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2566591) 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 15 ways as a sum of consecutive naturals, for example, 2901 + ... + 3680.

It is an arithmetic number, because the mean of its divisors is an integer number (207333).

2^2566590 is an apocalyptic number.

2566590 is an abundant number, since it is smaller than the sum of its proper divisors (4068066).

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

2566590 is a wasteful number, since it uses less digits than its factorization.

2566590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6604.

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 2566590 is about 1602.0580513827. The cubic root of 2566590 is about 136.9153578788.

The spelling of 2566590 in words is "two million, five hundred sixty-six thousand, five hundred ninety".