56455555556 has 12 divisors (see below), whose sum is σ = 103092753792. Its totient is φ = 27000483048.

The previous prime is 56455555547. The next prime is 56455555591. The reversal of 56455555556 is 65555555465.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 306823580 + ... + 306823763.

It is an arithmetic number, because the mean of its divisors is an integer number (8591062816).

Almost surely, 2^56455555556 is an apocalyptic number.

It is an amenable number.

56455555556 is a deficient number, since it is larger than the sum of its proper divisors (46637198236).

56455555556 is a wasteful number, since it uses less digits than its factorization.

56455555556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613647370 (or 613647368 counting only the distinct ones).

The product of its digits is 56250000, while the sum is 56.

Subtracting 56455555556 from its reverse (65555555465), we obtain a palindrome (9099999909).

The spelling of 56455555556 in words is "fifty-six billion, four hundred fifty-five million, five hundred fifty-five thousand, five hundred fifty-six".