536133221 has 4 divisors (see below), whose sum is σ = 577374252. Its totient is φ = 494892192.

The previous prime is 536133217. The next prime is 536133229. The reversal of 536133221 is 122331635.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 122331635 = 5 ⋅24466327.

It can be written as a sum of positive squares in 2 ways, for example, as 56085121 + 480048100 = 7489^2 + 21910^2 .

It is a cyclic number.

It is not a de Polignac number, because 536133221 - 2² = 536133217 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (536133229) 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, 20620496 + ... + 20620521.

It is an arithmetic number, because the mean of its divisors is an integer number (144343563).

Almost surely, 2^536133221 is an apocalyptic number.

It is an amenable number.

536133221 is a deficient number, since it is larger than the sum of its proper divisors (41241031).

536133221 is a wasteful number, since it uses less digits than its factorization.

536133221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41241030.

The product of its digits is 3240, while the sum is 26.

The square root of 536133221 is about 23154.5507622152. The cubic root of 536133221 is about 812.3769134570.

Adding to 536133221 its reverse (122331635), we get a palindrome (658464856).

The spelling of 536133221 in words is "five hundred thirty-six million, one hundred thirty-three thousand, two hundred twenty-one".