212425533 has 12 divisors (see below), whose sum is σ = 307061820. Its totient is φ = 141513216.

The previous prime is 212425531. The next prime is 212425583. The reversal of 212425533 is 335524212.

It is a happy number.

212425533 is a `hidden beast` number, since 2 + 124 + 2 + 5 + 533 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 87946884 + 124478649 = 9378^2 + 11157^2 .

It is not a de Polignac number, because 212425533 - 2¹ = 212425531 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 212425497 and 212425506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212425531) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5533 + ... + 21341.

It is an arithmetic number, because the mean of its divisors is an integer number (25588485).

Almost surely, 2^212425533 is an apocalyptic number.

It is an amenable number.

212425533 is a deficient number, since it is larger than the sum of its proper divisors (94636287).

212425533 is a wasteful number, since it uses less digits than its factorization.

212425533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17308 (or 17305 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 212425533 is about 14574.8253162774. The cubic root of 212425533 is about 596.6718818488.

Adding to 212425533 its reverse (335524212), we get a palindrome (547949745).

The spelling of 212425533 in words is "two hundred twelve million, four hundred twenty-five thousand, five hundred thirty-three".