11325513537 has 18 divisors (see below), whose sum is σ = 17714267142. Its totient is φ = 6969545856.

The previous prime is 11325513527. The next prime is 11325513541. The reversal of 11325513537 is 73531552311.

11325513537 is a `hidden beast` number, since 1 + 132 + 5 + 513 + 5 + 3 + 7 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 1229484096 + 10096029441 = 35064^2 + 100479^2 .

It is not a de Polignac number, because 11325513537 - 2⁶ = 11325513473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11325513527) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3721528 + ... + 3724569.

Almost surely, 2^11325513537 is an apocalyptic number.

It is an amenable number.

11325513537 is a deficient number, since it is larger than the sum of its proper divisors (6388753605).

11325513537 is a wasteful number, since it uses less digits than its factorization.

11325513537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7446129 (or 7446113 counting only the distinct ones).

The product of its digits is 47250, while the sum is 36.

The spelling of 11325513537 in words is "eleven billion, three hundred twenty-five million, five hundred thirteen thousand, five hundred thirty-seven".