56455556 has 12 divisors (see below), whose sum is σ = 98855820. Its totient is φ = 28211040.

The previous prime is 56455541. The next prime is 56455559. The reversal of 56455556 is 65555465.

56455556 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 2 ways, for example, as 46022656 + 10432900 = 6784^2 + 3230^2 .

It is not an unprimeable number, because it can be changed into a prime (56455559) 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 in 3 ways as a sum of consecutive naturals, for example, 6350 + ... + 12378.

It is an arithmetic number, because the mean of its divisors is an integer number (8237985).

Almost surely, 2^56455556 is an apocalyptic number.

It is an amenable number.

56455556 is a deficient number, since it is larger than the sum of its proper divisors (42400264).

56455556 is a wasteful number, since it uses less digits than its factorization.

56455556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8374 (or 8372 counting only the distinct ones).

The product of its digits is 450000, while the sum is 41.

The square root of 56455556 is about 7513.6912366692. The cubic root of 56455556 is about 383.6208732761.

Subtracting 56455556 from its reverse (65555465), we obtain a palindrome (9099909).

The spelling of 56455556 in words is "fifty-six million, four hundred fifty-five thousand, five hundred fifty-six".