212425530 has 32 divisors (see below), whose sum is σ = 510767424. Its totient is φ = 56541696.

The previous prime is 212425517. The next prime is 212425531. The reversal of 212425530 is 35524212.

It is a self number, because there is not a number n which added to its sum of digits gives 212425530.

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 15 ways as a sum of consecutive naturals, for example, 10602 + ... + 23178.

It is an arithmetic number, because the mean of its divisors is an integer number (15961482).

Almost surely, 2^212425530 is an apocalyptic number.

212425530 is an abundant number, since it is smaller than the sum of its proper divisors (298341894).

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

212425530 is a wasteful number, since it uses less digits than its factorization.

212425530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13150.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 212425530 is about 14574.8252133602. The cubic root of 212425530 is about 596.6718790399.

Adding to 212425530 its reverse (35524212), we get a palindrome (247949742).

The spelling of 212425530 in words is "two hundred twelve million, four hundred twenty-five thousand, five hundred thirty".