56421896 has 8 divisors (see below), whose sum is σ = 105791070. Its totient is φ = 28210944.

The previous prime is 56421851. The next prime is 56421901. The reversal of 56421896 is 69812465.

It is a happy number.

56421896 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., 33477796 + 22944100 = 5786^2 + 4790^2 .

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

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, 3526361 + ... + 3526376.

Almost surely, 2^56421896 is an apocalyptic number.

It is an amenable number.

56421896 is a deficient number, since it is larger than the sum of its proper divisors (49369174).

56421896 is a wasteful number, since it uses less digits than its factorization.

56421896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7052743 (or 7052739 counting only the distinct ones).

The product of its digits is 103680, while the sum is 41.

The square root of 56421896 is about 7511.4509916527. The cubic root of 56421896 is about 383.5446171516.

The spelling of 56421896 in words is "fifty-six million, four hundred twenty-one thousand, eight hundred ninety-six".