20053212 has 12 divisors (see below), whose sum is σ = 46790856. Its totient is φ = 6684400.

The previous prime is 20053211. The next prime is 20053237. The reversal of 20053212 is 21235002.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 20053191 and 20053200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20053211) 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, 835539 + ... + 835562.

It is an arithmetic number, because the mean of its divisors is an integer number (3899238).

Almost surely, 2^20053212 is an apocalyptic number.

It is an amenable number.

20053212 is an abundant number, since it is smaller than the sum of its proper divisors (26737644).

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

20053212 is a wasteful number, since it uses less digits than its factorization.

20053212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1671108 (or 1671106 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 20053212 is about 4478.0812855508. The cubic root of 20053212 is about 271.6822811271.

Adding to 20053212 its reverse (21235002), we get a palindrome (41288214).

The spelling of 20053212 in words is "twenty million, fifty-three thousand, two hundred twelve".