561207212 has 12 divisors (see below), whose sum is σ = 982343376. Its totient is φ = 280537680.

The previous prime is 561207203. The next prime is 561207271. The reversal of 561207212 is 212702165.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6113 + ... + 34055.

It is an arithmetic number, because the mean of its divisors is an integer number (81861948).

Almost surely, 2^561207212 is an apocalyptic number.

It is an amenable number.

561207212 is a deficient number, since it is larger than the sum of its proper divisors (421136164).

561207212 is a wasteful number, since it uses less digits than its factorization.

561207212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32968 (or 32966 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 561207212 is about 23689.8124095570. The cubic root of 561207212 is about 824.8489283220.

Adding to 561207212 its reverse (212702165), we get a palindrome (773909377).

The spelling of 561207212 in words is "five hundred sixty-one million, two hundred seven thousand, two hundred twelve".