11525544065 has 24 divisors (see below), whose sum is σ = 16099751232. Its totient is φ = 7897811040.

The previous prime is 11525544061. The next prime is 11525544089. The reversal of 11525544065 is 56044552511.

It is not a de Polignac number, because 11525544065 - 2² = 11525544061 is a prime.

It is a super-3 number, since 3×11525544065³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11525544061) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 359732 + ... + 390458.

It is an arithmetic number, because the mean of its divisors is an integer number (670822968).

Almost surely, 2^11525544065 is an apocalyptic number.

It is an amenable number.

11525544065 is a deficient number, since it is larger than the sum of its proper divisors (4574207167).

11525544065 is a wasteful number, since it uses less digits than its factorization.

11525544065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32277 (or 32270 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 38.

The spelling of 11525544065 in words is "eleven billion, five hundred twenty-five million, five hundred forty-four thousand, sixty-five".