11255220535 has 16 divisors (see below), whose sum is σ = 14560943040. Its totient is φ = 8302556160.

The previous prime is 11255220517. The next prime is 11255220577. The reversal of 11255220535 is 53502255211.

It is not a de Polignac number, because 11255220535 - 2³³ = 2665285943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11255220497 and 11255220506.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32811 + ... + 153580.

It is an arithmetic number, because the mean of its divisors is an integer number (910058940).

Almost surely, 2^11255220535 is an apocalyptic number.

11255220535 is a deficient number, since it is larger than the sum of its proper divisors (3305722505).

11255220535 is a wasteful number, since it uses less digits than its factorization.

11255220535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187338.

The product of its (nonzero) digits is 15000, while the sum is 31.

Adding to 11255220535 its reverse (53502255211), we get a palindrome (64757475746).

The spelling of 11255220535 in words is "eleven billion, two hundred fifty-five million, two hundred twenty thousand, five hundred thirty-five".