2533566 has 32 divisors (see below), whose sum is σ = 5840640. Its totient is φ = 717696.

The previous prime is 2533549. The next prime is 2533577. The reversal of 2533566 is 6653352.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2²¹ + 5⁷ + 3 + 3² + 5⁷ + 6³ + 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 15 ways as a sum of consecutive naturals, for example, 7350 + ... + 7686.

It is an arithmetic number, because the mean of its divisors is an integer number (182520).

2^2533566 is an apocalyptic number.

2533566 is an abundant number, since it is smaller than the sum of its proper divisors (3307074).

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

2533566 is a wasteful number, since it uses less digits than its factorization.

2533566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528.

The product of its digits is 16200, while the sum is 30.

The square root of 2533566 is about 1591.7179398373. The cubic root of 2533566 is about 136.3255967431.

The spelling of 2533566 in words is "two million, five hundred thirty-three thousand, five hundred sixty-six".