212066503 has 4 divisors (see below), whose sum is σ = 231345288. Its totient is φ = 192787720.

The previous prime is 212066489. The next prime is 212066521. The reversal of 212066503 is 305660212.

212066503 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212066503 - 2⁵ = 212066471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212066593) 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, 9639376 + ... + 9639397.

It is an arithmetic number, because the mean of its divisors is an integer number (57836322).

Almost surely, 2^212066503 is an apocalyptic number.

212066503 is a deficient number, since it is larger than the sum of its proper divisors (19278785).

212066503 is a wasteful number, since it uses less digits than its factorization.

212066503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19278784.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 212066503 is about 14562.5033218880. The cubic root of 212066503 is about 596.3355382440.

The spelling of 212066503 in words is "two hundred twelve million, sixty-six thousand, five hundred three".