11525001156 has 54 divisors (see below), whose sum is σ = 29692946010. Its totient is φ = 3769149696.

The previous prime is 11525001151. The next prime is 11525001167. The reversal of 11525001156 is 65110052511.

11525001156 is a `hidden beast` number, since 1 + 1 + 5 + 2 + 500 + 1 + 156 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 7679016900 + 3845984256 = 87630^2 + 62016^2 .

It is not an unprimeable number, because it can be changed into a prime (11525001151) by changing a digit.

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 17 ways as a sum of consecutive naturals, for example, 44140 + ... + 158108.

Almost surely, 2^11525001156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11525001156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14846473005).

11525001156 is an abundant number, since it is smaller than the sum of its proper divisors (18167944854).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11525001156 is a wasteful number, since it uses less digits than its factorization.

11525001156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114085 (or 114027 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 27.

Adding to 11525001156 its reverse (65110052511), we get a palindrome (76635053667).

The spelling of 11525001156 in words is "eleven billion, five hundred twenty-five million, one thousand, one hundred fifty-six".