11525520444 has 24 divisors (see below), whose sum is σ = 26919562320. Its totient is φ = 3838028544.

The previous prime is 11525520443. The next prime is 11525520467. The reversal of 11525520444 is 44402552511.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11525520443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 463839 + ... + 488054.

It is an arithmetic number, because the mean of its divisors is an integer number (1121648430).

Almost surely, 2^11525520444 is an apocalyptic number.

It is an amenable number.

11525520444 is an abundant number, since it is smaller than the sum of its proper divisors (15394041876).

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

11525520444 is a wasteful number, since it uses less digits than its factorization.

11525520444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 952909 (or 952907 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 33.

The spelling of 11525520444 in words is "eleven billion, five hundred twenty-five million, five hundred twenty thousand, four hundred forty-four".