2535566 has 16 divisors (see below), whose sum is σ = 4330368. Its totient is φ = 1102200.

The previous prime is 2535553. The next prime is 2535571. The reversal of 2535566 is 6655352.

It is a super-4 number, since 4×2535566⁴ (a number of 27 digits) contains 4444 as substring.

It is a d-powerful number, because it can be written as 2²¹ + 5 + 3⁷ + 5⁷ + 5⁷ + 6² + 6⁷ .

It is a Curzon number.

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, 2000 + ... + 3011.

It is an arithmetic number, because the mean of its divisors is an integer number (270648).

2^2535566 is an apocalyptic number.

2535566 is a deficient number, since it is larger than the sum of its proper divisors (1794802).

2535566 is a wasteful number, since it uses less digits than its factorization.

2535566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5047.

The product of its digits is 27000, while the sum is 32.

The square root of 2535566 is about 1592.3460679136. The cubic root of 2535566 is about 136.3614591706.

The spelling of 2535566 in words is "two million, five hundred thirty-five thousand, five hundred sixty-six".