2563533 has 18 divisors (see below), whose sum is σ = 4308174. Its totient is φ = 1464624.

The previous prime is 2563523. The next prime is 2563543. The reversal of 2563533 is 3353652.

2563533 is a `hidden beast` number, since 25 + 635 + 3 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (2563523) and next prime (2563543).

It can be written as a sum of positive squares in only one way, i.e., 2350089 + 213444 = 1533^2 + 462^2 .

It is not a de Polignac number, because 2563533 - 2¹² = 2559437 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a d-powerful number, because it can be written as 2⁹ + 5⁷ + 6 + 3⁴ + 5⁹ + 3⁵ + 3¹² .

It is a junction number, because it is equal to n+sod(n) for n = 2563497 and 2563506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2563523) 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 17 ways as a sum of consecutive naturals, for example, 2466 + ... + 3347.

It is an arithmetic number, because the mean of its divisors is an integer number (239343).

2^2563533 is an apocalyptic number.

It is an amenable number.

2563533 is a deficient number, since it is larger than the sum of its proper divisors (1744641).

2563533 is a wasteful number, since it uses less digits than its factorization.

2563533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5833 (or 5823 counting only the distinct ones).

The product of its digits is 8100, while the sum is 27.

The square root of 2563533 is about 1601.1036818395. The cubic root of 2563533 is about 136.8609774838.

The spelling of 2563533 in words is "two million, five hundred sixty-three thousand, five hundred thirty-three".