212287056 has 80 divisors (see below), whose sum is σ = 587831424. Its totient is φ = 65843712.

The previous prime is 212287051. The next prime is 212287063. The reversal of 212287056 is 650782212.

212287056 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212287051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38250 + ... + 43446.

Almost surely, 2^212287056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212287056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (293915712).

212287056 is an abundant number, since it is smaller than the sum of its proper divisors (375544368).

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

212287056 is a wasteful number, since it uses less digits than its factorization.

212287056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5268 (or 5262 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 212287056 is about 14570.0739874580. The cubic root of 212287056 is about 596.5421998663.

The spelling of 212287056 in words is "two hundred twelve million, two hundred eighty-seven thousand, fifty-six".