55358090089 has 9 divisors (see below), whose sum is σ = 56903640087. Its totient is φ = 53853455304.

The previous prime is 55358090077. The next prime is 55358090093. The reversal of 55358090089 is 98009085355.

The square root of 55358090089 is 235283.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 49535179225 + 5822910864 = 222565^2 + 76308^2 .

It is not a de Polignac number, because 55358090089 - 2⁵ = 55358090057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55358060089) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 8702292 + ... + 8708650.

Almost surely, 2^55358090089 is an apocalyptic number.

55358090089 is the 235283-rd square number.

55358090089 is the 117642-nd centered octagonal number.

It is an amenable number.

55358090089 is a deficient number, since it is larger than the sum of its proper divisors (1545549998).

55358090089 is an frugal number, since it uses more digits than its factorization.

55358090089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12792 (or 6396 counting only the distinct ones).

The product of its (nonzero) digits is 1944000, while the sum is 52.

The spelling of 55358090089 in words is "fifty-five billion, three hundred fifty-eight million, ninety thousand, eighty-nine".