20533262 has 8 divisors (see below), whose sum is σ = 32421000. Its totient is φ = 9726264.

The previous prime is 20533241. The next prime is 20533267. The reversal of 20533262 is 26233502.

It is a happy number.

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

It is a super-2 number, since 2×20533262² = 843229696721288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20533267) 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, 270137 + ... + 270212.

It is an arithmetic number, because the mean of its divisors is an integer number (4052625).

Almost surely, 2^20533262 is an apocalyptic number.

20533262 is a deficient number, since it is larger than the sum of its proper divisors (11887738).

20533262 is a wasteful number, since it uses less digits than its factorization.

20533262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540370.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 20533262 is about 4531.3642537320. The cubic root of 20533262 is about 273.8331251631.

Adding to 20533262 its reverse (26233502), we get a palindrome (46766764).

The spelling of 20533262 in words is "twenty million, five hundred thirty-three thousand, two hundred sixty-two".