11725575255 has 16 divisors (see below), whose sum is σ = 20845467360. Its totient is φ = 6253640064.

The previous prime is 11725575247. The next prime is 11725575259. The reversal of 11725575255 is 55257552711.

11725575255 is a `hidden beast` number, since 1 + 1 + 7 + 25 + 575 + 2 + 55 = 666.

It is not a de Polignac number, because 11725575255 - 2³ = 11725575247 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 11725575255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11725575259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43427922 + ... + 43428191.

It is an arithmetic number, because the mean of its divisors is an integer number (1302841710).

Almost surely, 2^11725575255 is an apocalyptic number.

11725575255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11725575255 is a deficient number, since it is larger than the sum of its proper divisors (9119892105).

11725575255 is an equidigital number, since it uses as much as digits as its factorization.

11725575255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86856127 (or 86856121 counting only the distinct ones).

The product of its digits is 612500, while the sum is 45.

It can be divided in two parts, 117255 and 75255, that added together give a triangular number (192510 = T₆₂₀).

The spelling of 11725575255 in words is "eleven billion, seven hundred twenty-five million, five hundred seventy-five thousand, two hundred fifty-five".