56109212 has 6 divisors (see below), whose sum is σ = 98191128. Its totient is φ = 28054604.

The previous prime is 56109199. The next prime is 56109233. The reversal of 56109212 is 21290165.

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 (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7013648 + ... + 7013655.

It is an arithmetic number, because the mean of its divisors is an integer number (16365188).

Almost surely, 2^56109212 is an apocalyptic number.

It is an amenable number.

56109212 is a deficient number, since it is larger than the sum of its proper divisors (42081916).

56109212 is a wasteful number, since it uses less digits than its factorization.

56109212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14027307 (or 14027305 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 56109212 is about 7490.6082530059. The cubic root of 56109212 is about 382.8347834326.

Adding to 56109212 its reverse (21290165), we get a palindrome (77399377).

The spelling of 56109212 in words is "fifty-six million, one hundred nine thousand, two hundred twelve".