20552012 has 12 divisors (see below), whose sum is σ = 38732736. Its totient is φ = 9485520.

The previous prime is 20552011. The next prime is 20552071. The reversal of 20552012 is 21025502.

It is not an unprimeable number, because it can be changed into a prime (20552011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197564 + ... + 197667.

It is an arithmetic number, because the mean of its divisors is an integer number (3227728).

Almost surely, 2^20552012 is an apocalyptic number.

It is an amenable number.

20552012 is a deficient number, since it is larger than the sum of its proper divisors (18180724).

20552012 is a wasteful number, since it uses less digits than its factorization.

20552012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395248 (or 395246 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 20552012 is about 4533.4326949895. The cubic root of 20552012 is about 273.9164502751.

Adding to 20552012 its reverse (21025502), we get a palindrome (41577514).

The spelling of 20552012 in words is "twenty million, five hundred fifty-two thousand, twelve".