56220712 has 8 divisors (see below), whose sum is σ = 105413850. Its totient is φ = 28110352.

The previous prime is 56220679. The next prime is 56220713. The reversal of 56220712 is 21702265.

56220712 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 43217476 + 13003236 = 6574^2 + 3606^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (56220713) by changing a digit.

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, 3513787 + ... + 3513802.

Almost surely, 2^56220712 is an apocalyptic number.

It is an amenable number.

56220712 is a deficient number, since it is larger than the sum of its proper divisors (49193138).

56220712 is a wasteful number, since it uses less digits than its factorization.

56220712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7027595 (or 7027591 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 56220712 is about 7498.0472124414. The cubic root of 56220712 is about 383.0882048869.

Adding to 56220712 its reverse (21702265), we get a palindrome (77922977).

The spelling of 56220712 in words is "fifty-six million, two hundred twenty thousand, seven hundred twelve".