55100204389 has 2 divisors, whose sum is σ = 55100204390. Its totient is φ = 55100204388.

The previous prime is 55100204333. The next prime is 55100204417. The reversal of 55100204389 is 98340200155.

55100204389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49309755364 + 5790449025 = 222058^2 + 76095^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55100204389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55100204309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27550102194 + 27550102195.

It is an arithmetic number, because the mean of its divisors is an integer number (27550102195).

Almost surely, 2^55100204389 is an apocalyptic number.

It is an amenable number.

55100204389 is a deficient number, since it is larger than the sum of its proper divisors (1).

55100204389 is an equidigital number, since it uses as much as digits as its factorization.

55100204389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43200, while the sum is 37.

The spelling of 55100204389 in words is "fifty-five billion, one hundred million, two hundred four thousand, three hundred eighty-nine".