56181212 has 6 divisors (see below), whose sum is σ = 98317128. Its totient is φ = 28090604.

The previous prime is 56181179. The next prime is 56181221. The reversal of 56181212 is 21218165.

56181212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7022648 + ... + 7022655.

It is an arithmetic number, because the mean of its divisors is an integer number (16386188).

Almost surely, 2^56181212 is an apocalyptic number.

It is an amenable number.

56181212 is a deficient number, since it is larger than the sum of its proper divisors (42135916).

56181212 is a wasteful number, since it uses less digits than its factorization.

56181212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14045307 (or 14045305 counting only the distinct ones).

The product of its digits is 960, while the sum is 26.

The square root of 56181212 is about 7495.4127304639. The cubic root of 56181212 is about 382.9984661365.

Adding to 56181212 its reverse (21218165), we get a palindrome (77399377).

The spelling of 56181212 in words is "fifty-six million, one hundred eighty-one thousand, two hundred twelve".