11155051125 has 48 divisors (see below), whose sum is σ = 20211315696. Its totient is φ = 5919043200.

The previous prime is 11155051123. The next prime is 11155051163. The reversal of 11155051125 is 52115055111.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 187306596 + 10967744529 = 13686^2 + 104727^2 .

It is not a de Polignac number, because 11155051125 - 2¹ = 11155051123 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11155051123) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 196459 + ... + 246791.

It is an arithmetic number, because the mean of its divisors is an integer number (421069077).

Almost surely, 2^11155051125 is an apocalyptic number.

11155051125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11155051125 is a deficient number, since it is larger than the sum of its proper divisors (9056264571).

11155051125 is a wasteful number, since it uses less digits than its factorization.

11155051125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50551 (or 50538 counting only the distinct ones).

The product of its (nonzero) digits is 1250, while the sum is 27.

The spelling of 11155051125 in words is "eleven billion, one hundred fifty-five million, fifty-one thousand, one hundred twenty-five".