11255300281 has 9 divisors (see below), whose sum is σ = 11325650511. Its totient is φ = 11185386312.

The previous prime is 11255300261. The next prime is 11255300291. The reversal of 11255300281 is 18200355211.

The square root of 11255300281 is 106091.

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., 1939962025 + 9315338256 = 44045^2 + 96516^2 .

It is not a de Polignac number, because 11255300281 - 2⁵ = 11255300249 is a prime.

It is a super-2 number, since 2×11255300281² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11255300201) 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, 29387016 + ... + 29387398.

Almost surely, 2^11255300281 is an apocalyptic number.

11255300281 is the 106091-st square number.

11255300281 is the 53046-th centered octagonal number.

It is an amenable number.

11255300281 is a deficient number, since it is larger than the sum of its proper divisors (70350230).

11255300281 is an frugal number, since it uses more digits than its factorization.

11255300281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1320 (or 660 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 28.

Adding to 11255300281 its reverse (18200355211), we get a palindrome (29455655492).

The spelling of 11255300281 in words is "eleven billion, two hundred fifty-five million, three hundred thousand, two hundred eighty-one".