55611233889 has 8 divisors (see below), whose sum is σ = 74232863040. Its totient is φ = 37031880336.

The previous prime is 55611233857. The next prime is 55611233897. The reversal of 55611233889 is 98833211655.

It is a happy number.

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

It is not a de Polignac number, because 55611233889 - 2⁵ = 55611233857 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55611233849) 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, 10565829 + ... + 10571090.

It is an arithmetic number, because the mean of its divisors is an integer number (9279107880).

Almost surely, 2^55611233889 is an apocalyptic number.

It is an amenable number.

55611233889 is a deficient number, since it is larger than the sum of its proper divisors (18621629151).

55611233889 is a wasteful number, since it uses less digits than its factorization.

55611233889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21137799.

The product of its digits is 1555200, while the sum is 51.

The spelling of 55611233889 in words is "fifty-five billion, six hundred eleven million, two hundred thirty-three thousand, eight hundred eighty-nine".