55601005989 has 16 divisors (see below), whose sum is σ = 77365965312. Its totient is φ = 35452027248.

The previous prime is 55601005981. The next prime is 55601006011. The reversal of 55601005989 is 98950010655.

It is a happy number.

It is not a de Polignac number, because 55601005989 - 2³ = 55601005981 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55601005981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 728374 + ... + 801080.

It is an arithmetic number, because the mean of its divisors is an integer number (4835372832).

Almost surely, 2^55601005989 is an apocalyptic number.

It is an amenable number.

55601005989 is a deficient number, since it is larger than the sum of its proper divisors (21764959323).

55601005989 is a wasteful number, since it uses less digits than its factorization.

55601005989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83816.

The product of its (nonzero) digits is 486000, while the sum is 48.

The spelling of 55601005989 in words is "fifty-five billion, six hundred one million, five thousand, nine hundred eighty-nine".