55612277889 has 8 divisors (see below), whose sum is σ = 84742518720. Its totient is φ = 31778444496.

The previous prime is 55612277873. The next prime is 55612277957. The reversal of 55612277889 is 98877221655.

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

It is not a de Polignac number, because 55612277889 - 2⁴ = 55612277873 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55612277839) 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, 1324101834 + ... + 1324101875.

It is an arithmetic number, because the mean of its divisors is an integer number (10592814840).

Almost surely, 2^55612277889 is an apocalyptic number.

It is an amenable number.

55612277889 is a deficient number, since it is larger than the sum of its proper divisors (29130240831).

55612277889 is a wasteful number, since it uses less digits than its factorization.

55612277889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2648203719.

The product of its digits is 16934400, while the sum is 60.

The spelling of 55612277889 in words is "fifty-five billion, six hundred twelve million, two hundred seventy-seven thousand, eight hundred eighty-nine".