11255555555 has 8 divisors (see below), whose sum is σ = 13509940752. Its totient is φ = 9002261728.

The previous prime is 11255555543. The next prime is 11255555651. The reversal of 11255555555 is 55555555211.

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 11255555555 - 2³⁰ = 10181813731 is a prime.

It is a Duffinian number.

11255555555 is a modest number, since divided by 555555 gives 11255 as remainder.

It is a plaindrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 249977 + ... + 291546.

It is an arithmetic number, because the mean of its divisors is an integer number (1688742594).

Almost surely, 2^11255555555 is an apocalyptic number.

11255555555 is a deficient number, since it is larger than the sum of its proper divisors (2254385197).

11255555555 is an equidigital number, since it uses as much as digits as its factorization.

11255555555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545685.

The product of its digits is 781250, while the sum is 44.

The spelling of 11255555555 in words is "eleven billion, two hundred fifty-five million, five hundred fifty-five thousand, five hundred fifty-five".