212552256 has 112 divisors (see below), whose sum is σ = 647248896. Its totient is φ = 60301824.

The previous prime is 212552237. The next prime is 212552261. The reversal of 212552256 is 652255212.

It is a tau number, because it is divible by the number of its divisors (112).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 223975 + ... + 224921.

It is an arithmetic number, because the mean of its divisors is an integer number (5779008).

Almost surely, 2^212552256 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 212552256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (323624448).

212552256 is an abundant number, since it is smaller than the sum of its proper divisors (434696640).

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

212552256 is a wasteful number, since it uses less digits than its factorization.

212552256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1136 (or 1126 counting only the distinct ones).

The product of its digits is 12000, while the sum is 30.

The square root of 212552256 is about 14579.1719929494. The cubic root of 212552256 is about 596.7905069803.

The spelling of 212552256 in words is "two hundred twelve million, five hundred fifty-two thousand, two hundred fifty-six".