20555332 has 24 divisors (see below), whose sum is σ = 41728064. Its totient is φ = 8677152.

The previous prime is 20555323. The next prime is 20555347. The reversal of 20555332 is 23355502.

It is a junction number, because it is equal to n+sod(n) for n = 20555297 and 20555306.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3603 + ... + 7354.

Almost surely, 2^20555332 is an apocalyptic number.

It is an amenable number.

20555332 is an abundant number, since it is smaller than the sum of its proper divisors (21172732).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20555332 is a wasteful number, since it uses less digits than its factorization.

20555332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11035 (or 11033 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 25.

The square root of 20555332 is about 4533.7988486478. The cubic root of 20555332 is about 273.9311990931.

The spelling of 20555332 in words is "twenty million, five hundred fifty-five thousand, three hundred thirty-two".