11255718281 has 8 divisors (see below), whose sum is σ = 11349703680. Its totient is φ = 11161816848.

The previous prime is 11255718277. The next prime is 11255718289. The reversal of 11255718281 is 18281755211.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11255718281 - 2² = 11255718277 is a prime.

It is a super-2 number, since 2×11255718281² (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 (11255718289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 264290 + ... + 303908.

It is an arithmetic number, because the mean of its divisors is an integer number (1418712960).

Almost surely, 2^11255718281 is an apocalyptic number.

It is an amenable number.

11255718281 is a deficient number, since it is larger than the sum of its proper divisors (93985399).

11255718281 is a wasteful number, since it uses less digits than its factorization.

11255718281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41983.

The product of its digits is 44800, while the sum is 41.

The spelling of 11255718281 in words is "eleven billion, two hundred fifty-five million, seven hundred eighteen thousand, two hundred eighty-one".