2565894 has 16 divisors (see below), whose sum is σ = 5160960. Its totient is φ = 850440.

The previous prime is 2565881. The next prime is 2565907. The reversal of 2565894 is 4985652.

It is an interprime number because it is at equal distance from previous prime (2565881) and next prime (2565907).

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27 + ... + 2265.

It is an arithmetic number, because the mean of its divisors is an integer number (322560).

2^2565894 is an apocalyptic number.

2565894 is an abundant number, since it is smaller than the sum of its proper divisors (2595066).

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

2565894 is a wasteful number, since it uses less digits than its factorization.

2565894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2435.

The product of its digits is 86400, while the sum is 39.

The square root of 2565894 is about 1601.8408160613. The cubic root of 2565894 is about 136.9029806644.

It can be divided in two parts, 25658 and 94, that added together give a palindrome (25752).

The spelling of 2565894 in words is "two million, five hundred sixty-five thousand, eight hundred ninety-four".