56553767889 has 8 divisors (see below), whose sum is σ = 76641172032. Its totient is φ = 37084437840.

The previous prime is 56553767873. The next prime is 56553767903. The reversal of 56553767889 is 98876735565.

56553767889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 56553767889 - 2⁴ = 56553767873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56553767849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154518309 + ... + 154518674.

It is an arithmetic number, because the mean of its divisors is an integer number (9580146504).

Almost surely, 2^56553767889 is an apocalyptic number.

It is an amenable number.

56553767889 is a deficient number, since it is larger than the sum of its proper divisors (20087404143).

56553767889 is a wasteful number, since it uses less digits than its factorization.

56553767889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309037047.

The product of its digits is 381024000, while the sum is 69.

The spelling of 56553767889 in words is "fifty-six billion, five hundred fifty-three million, seven hundred sixty-seven thousand, eight hundred eighty-nine".