20126533 has 16 divisors (see below), whose sum is σ = 23952384. Its totient is φ = 16548480.

The previous prime is 20126527. The next prime is 20126563. The reversal of 20126533 is 33562102.

It is a cyclic number.

It is not a de Polignac number, because 20126533 - 2¹³ = 20118341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20126503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29391 + ... + 30067.

It is an arithmetic number, because the mean of its divisors is an integer number (1497024).

Almost surely, 2^20126533 is an apocalyptic number.

It is an amenable number.

20126533 is a deficient number, since it is larger than the sum of its proper divisors (3825851).

20126533 is a wasteful number, since it uses less digits than its factorization.

20126533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 20126533 is about 4486.2604694779. The cubic root of 20126533 is about 272.0129976848.

Adding to 20126533 its reverse (33562102), we get a palindrome (53688635).

The spelling of 20126533 in words is "twenty million, one hundred twenty-six thousand, five hundred thirty-three".