20555414 has 48 divisors (see below), whose sum is σ = 37002096. Its totient is φ = 8486400.

The previous prime is 20555407. The next prime is 20555417. The reversal of 20555414 is 41455502.

It is a super-2 number, since 2×20555414² = 845050089422792, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20555417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 336944 + ... + 337004.

It is an arithmetic number, because the mean of its divisors is an integer number (770877).

Almost surely, 2^20555414 is an apocalyptic number.

20555414 is a deficient number, since it is larger than the sum of its proper divisors (16446682).

20555414 is a wasteful number, since it uses less digits than its factorization.

20555414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161 (or 144 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 20555414 is about 4533.8078918278. The cubic root of 20555414 is about 273.9315633510.

The spelling of 20555414 in words is "twenty million, five hundred fifty-five thousand, four hundred fourteen".