20650533 has 8 divisors (see below), whose sum is σ = 27655200. Its totient is φ = 13706448.

The previous prime is 20650519. The next prime is 20650541. The reversal of 20650533 is 33505602.

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

It is not a de Polignac number, because 20650533 - 2⁵ = 20650501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20650583) 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, 14343 + ... + 15716.

It is an arithmetic number, because the mean of its divisors is an integer number (3456900).

Almost surely, 2^20650533 is an apocalyptic number.

It is an amenable number.

20650533 is a deficient number, since it is larger than the sum of its proper divisors (7004667).

20650533 is a wasteful number, since it uses less digits than its factorization.

20650533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30291.

The product of its (nonzero) digits is 2700, while the sum is 24.

The square root of 20650533 is about 4544.2857524588. The cubic root of 20650533 is about 274.3534474728.

The spelling of 20650533 in words is "twenty million, six hundred fifty thousand, five hundred thirty-three".