225045212 has 24 divisors (see below), whose sum is σ = 459669504. Its totient is φ = 94395312.

The previous prime is 225045181. The next prime is 225045229. The reversal of 225045212 is 212540522.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84188 + ... + 86819.

It is an arithmetic number, because the mean of its divisors is an integer number (19152896).

Almost surely, 2^225045212 is an apocalyptic number.

It is an amenable number.

225045212 is an abundant number, since it is smaller than the sum of its proper divisors (234624292).

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

225045212 is a wasteful number, since it uses less digits than its factorization.

225045212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171065 (or 171063 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 225045212 is about 15001.5069909659. The cubic root of 225045212 is about 608.2609358684.

Adding to 225045212 its reverse (212540522), we get a palindrome (437585734).

The spelling of 225045212 in words is "two hundred twenty-five million, forty-five thousand, two hundred twelve".