55889400205 has 16 divisors (see below), whose sum is σ = 68413086000. Its totient is φ = 43816301568.

The previous prime is 55889400191. The next prime is 55889400211. The reversal of 55889400205 is 50200498855.

It can be written as a sum of positive squares in 8 ways, for example, as 17632387369 + 38257012836 = 132787^2 + 195594^2 .

It is a cyclic number.

It is not a de Polignac number, because 55889400205 - 2³⁵ = 21529661837 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102421 + ... + 349669.

It is an arithmetic number, because the mean of its divisors is an integer number (4275817875).

Almost surely, 2^55889400205 is an apocalyptic number.

It is an amenable number.

55889400205 is a deficient number, since it is larger than the sum of its proper divisors (12523685795).

55889400205 is a wasteful number, since it uses less digits than its factorization.

55889400205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248160.

The product of its (nonzero) digits is 576000, while the sum is 46.

The spelling of 55889400205 in words is "fifty-five billion, eight hundred eighty-nine million, four hundred thousand, two hundred five".