20523332 has 12 divisors (see below), whose sum is σ = 36105216. Its totient is φ = 10207560.

The previous prime is 20523323. The next prime is 20523343. The reversal of 20523332 is 23332502.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12668 + ... + 14195.

It is an arithmetic number, because the mean of its divisors is an integer number (3008768).

Almost surely, 2^20523332 is an apocalyptic number.

It is an amenable number.

20523332 is a deficient number, since it is larger than the sum of its proper divisors (15581884).

20523332 is a wasteful number, since it uses less digits than its factorization.

20523332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27058 (or 27056 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 20.

The square root of 20523332 is about 4530.2684247183. The cubic root of 20523332 is about 273.7889756366.

Adding to 20523332 its reverse (23332502), we get a palindrome (43855834).

The spelling of 20523332 in words is "twenty million, five hundred twenty-three thousand, three hundred thirty-two".