56512212 has 12 divisors (see below), whose sum is σ = 131861856. Its totient is φ = 18837400.

The previous prime is 56512201. The next prime is 56512229. The reversal of 56512212 is 21221565.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

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, 2354664 + ... + 2354687.

It is an arithmetic number, because the mean of its divisors is an integer number (10988488).

Almost surely, 2^56512212 is an apocalyptic number.

It is an amenable number.

56512212 is an abundant number, since it is smaller than the sum of its proper divisors (75349644).

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

56512212 is a wasteful number, since it uses less digits than its factorization.

56512212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4709358 (or 4709356 counting only the distinct ones).

The product of its digits is 1200, while the sum is 24.

The square root of 56512212 is about 7517.4604754531. The cubic root of 56512212 is about 383.7491580087.

Adding to 56512212 its reverse (21221565), we get a palindrome (77733777).

The spelling of 56512212 in words is "fifty-six million, five hundred twelve thousand, two hundred twelve".