20534233 has 8 divisors (see below), whose sum is σ = 21513600. Its totient is φ = 19573008.

The previous prime is 20534207. The next prime is 20534237. The reversal of 20534233 is 33243502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20534233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20534237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2191 + ... + 6772.

It is an arithmetic number, because the mean of its divisors is an integer number (2689200).

Almost surely, 2^20534233 is an apocalyptic number.

It is an amenable number.

20534233 is a deficient number, since it is larger than the sum of its proper divisors (979367).

20534233 is an equidigital number, since it uses as much as digits as its factorization.

20534233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9071.

The product of its (nonzero) digits is 2160, while the sum is 22.

The square root of 20534233 is about 4531.4713945914. The cubic root of 20534233 is about 273.8374415381.

Adding to 20534233 its reverse (33243502), we get a palindrome (53777735).

The spelling of 20534233 in words is "twenty million, five hundred thirty-four thousand, two hundred thirty-three".