20533106 has 16 divisors (see below), whose sum is σ = 33868800. Its totient is φ = 9258480.

The previous prime is 20533063. The next prime is 20533109. The reversal of 20533106 is 60133502.

20533106 = T₁₀₉₉ + T₁₁₀₀ + ... + T₁₁₃₁.

It is not an unprimeable number, because it can be changed into a prime (20533109) 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, 881 + ... + 6468.

It is an arithmetic number, because the mean of its divisors is an integer number (2116800).

Almost surely, 2^20533106 is an apocalyptic number.

20533106 is a deficient number, since it is larger than the sum of its proper divisors (13335694).

20533106 is a wasteful number, since it uses less digits than its factorization.

20533106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7489.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 20533106 is about 4531.3470403402. The cubic root of 20533106 is about 273.8324316855.

Adding to 20533106 its reverse (60133502), we get a palindrome (80666608).

The spelling of 20533106 in words is "twenty million, five hundred thirty-three thousand, one hundred six".