212442552 has 96 divisors (see below), whose sum is σ = 662937600. Its totient is φ = 60201792.

The previous prime is 212442551. The next prime is 212442577. The reversal of 212442552 is 255244212.

212442552 is a `hidden beast` number, since 212 + 442 + 5 + 5 + 2 = 666.

212442552 is digitally balanced in base 3, because in such base 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 (212442551) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62349 + ... + 65667.

It is an arithmetic number, because the mean of its divisors is an integer number (6905600).

Almost surely, 2^212442552 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 212442552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (331468800).

212442552 is an abundant number, since it is smaller than the sum of its proper divisors (450495048).

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

212442552 is a wasteful number, since it uses less digits than its factorization.

212442552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3465 (or 3458 counting only the distinct ones).

The product of its digits is 6400, while the sum is 27.

The square root of 212442552 is about 14575.4091537768. The cubic root of 212442552 is about 596.6878160406.

Adding to 212442552 its reverse (255244212), we get a palindrome (467686764).

The spelling of 212442552 in words is "two hundred twelve million, four hundred forty-two thousand, five hundred fifty-two".