2055234764881 has 9 divisors (see below), whose sum is σ = 2060398642449. Its totient is φ = 2050083807744.

The previous prime is 2055234764873. The next prime is 2055234764917. The reversal of 2055234764881 is 1884674325502.

It is a happy number.

The square root of 2055234764881 is 1433609.

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 1725437246481 + 329797518400 = 1313559^2 + 574280^2 .

It is not a de Polignac number, because 2055234764881 - 2³ = 2055234764873 is a prime.

It is a super-2 number, since 2×2055234764881² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2055234764861) 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, 655157745 + ... + 655160881.

Almost surely, 2^{2055234764881} is an apocalyptic number.

2055234764881 is the 1433609-th square number.

2055234764881 is the 716805-th centered octagonal number.

It is an amenable number.

2055234764881 is a deficient number, since it is larger than the sum of its proper divisors (5163877568).

2055234764881 is an frugal number, since it uses more digits than its factorization.

2055234764881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7188 (or 3594 counting only the distinct ones).

The product of its (nonzero) digits is 12902400, while the sum is 55.

The spelling of 2055234764881 in words is "two trillion, fifty-five billion, two hundred thirty-four million, seven hundred sixty-four thousand, eight hundred eighty-one".