56554656478 has 8 divisors (see below), whose sum is σ = 84836255400. Its totient is φ = 28275904680.

The previous prime is 56554656463. The next prime is 56554656491. The reversal of 56554656478 is 87465645565.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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, 661408 + ... + 742003.

It is an arithmetic number, because the mean of its divisors is an integer number (10604531925).

Almost surely, 2^56554656478 is an apocalyptic number.

56554656478 is a deficient number, since it is larger than the sum of its proper divisors (28281598922).

56554656478 is a wasteful number, since it uses less digits than its factorization.

56554656478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1423562.

The product of its digits is 120960000, while the sum is 61.

The spelling of 56554656478 in words is "fifty-six billion, five hundred fifty-four million, six hundred fifty-six thousand, four hundred seventy-eight".