20055316 has 6 divisors (see below), whose sum is σ = 35096810. Its totient is φ = 10027656.

The previous prime is 20055313. The next prime is 20055377. The reversal of 20055316 is 61355002.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11587216 + 8468100 = 3404^2 + 2910^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20055313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2506911 + ... + 2506918.

Almost surely, 2^20055316 is an apocalyptic number.

It is an amenable number.

20055316 is a deficient number, since it is larger than the sum of its proper divisors (15041494).

20055316 is a wasteful number, since it uses less digits than its factorization.

20055316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5013833 (or 5013831 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 20055316 is about 4478.3162014311. The cubic root of 20055316 is about 271.6917825065.

The spelling of 20055316 in words is "twenty million, fifty-five thousand, three hundred sixteen".