2533636 has 24 divisors (see below), whose sum is σ = 5193216. Its totient is φ = 1058880.

The previous prime is 2533627. The next prime is 2533651. The reversal of 2533636 is 6363352.

It is a super-2 number, since 2×2533636² = 12838622760992, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a d-powerful number, because it can be written as 2¹³ + 5⁹ + 3⁹ + 3⁹ + 6³ + 3¹² + 6⁴ .

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, 45 + ... + 2251.

It is an arithmetic number, because the mean of its divisors is an integer number (216384).

2^2533636 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2533636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2596608).

2533636 is an abundant number, since it is smaller than the sum of its proper divisors (2659580).

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

2533636 is a wasteful number, since it uses less digits than its factorization.

2533636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2259 (or 2257 counting only the distinct ones).

The product of its digits is 9720, while the sum is 28.

The square root of 2533636 is about 1591.7399285059. The cubic root of 2533636 is about 136.3268522467.

Adding to 2533636 its reverse (6363352), we get a palindrome (8896988).

The spelling of 2533636 in words is "two million, five hundred thirty-three thousand, six hundred thirty-six".