2856533 has 4 divisors (see below), whose sum is σ = 2923008. Its totient is φ = 2790060.

The previous prime is 2856521. The next prime is 2856547. The reversal of 2856533 is 3356582.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2856533 - 2²⁰ = 1807957 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2856533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2853533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33173 + ... + 33258.

It is an arithmetic number, because the mean of its divisors is an integer number (730752).

2^2856533 is an apocalyptic number.

It is an amenable number.

2856533 is a deficient number, since it is larger than the sum of its proper divisors (66475).

2856533 is an equidigital number, since it uses as much as digits as its factorization.

2856533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66474.

The product of its digits is 21600, while the sum is 32.

The square root of 2856533 is about 1690.1281016538. The cubic root of 2856533 is about 141.8882444116. Note that the first 3 decimals are identical.

The spelling of 2856533 in words is "two million, eight hundred fifty-six thousand, five hundred thirty-three".