55286823831121 has 27 divisors (see below), whose sum is σ = 58980434989329. Its totient is φ = 51813971756928.

The previous prime is 55286823831119. The next prime is 55286823831179. The reversal of 55286823831121 is 12113832868255.

The square root of 55286823831121 is 7435511.

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

It can be written as a sum of positive squares in 4 ways, for example, as 211130141121 + 55075693690000 = 459489^2 + 7421300^2 .

It is not a de Polignac number, because 55286823831121 - 2¹ = 55286823831119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55286823831181) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 35013820510 + ... + 35013822088.

Almost surely, 2^{55286823831121} is an apocalyptic number.

55286823831121 is the 7435511-st square number.

55286823831121 is the 3717756-th centered octagonal number.

It is an amenable number.

55286823831121 is a deficient number, since it is larger than the sum of its proper divisors (3693611158208).

55286823831121 is an frugal number, since it uses more digits than its factorization.

55286823831121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3746 (or 1873 counting only the distinct ones).

The product of its digits is 5529600, while the sum is 55.

The spelling of 55286823831121 in words is "fifty-five trillion, two hundred eighty-six billion, eight hundred twenty-three million, eight hundred thirty-one thousand, one hundred twenty-one".