11552563539 has 24 divisors (see below), whose sum is σ = 18696046512. Its totient is φ = 6812320320.

The previous prime is 11552563531. The next prime is 11552563543. The reversal of 11552563539 is 93536525511.

11552563539 is a `hidden beast` number, since 1 + 1 + 5 + 5 + 2 + 5 + 635 + 3 + 9 = 666.

It is not a de Polignac number, because 11552563539 - 2³ = 11552563531 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11552563494 and 11552563503.

It is not an unprimeable number, because it can be changed into a prime (11552563531) 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, 1573264 + ... + 1580589.

It is an arithmetic number, because the mean of its divisors is an integer number (779001938).

Almost surely, 2^11552563539 is an apocalyptic number.

11552563539 is a deficient number, since it is larger than the sum of its proper divisors (7143482973).

11552563539 is a wasteful number, since it uses less digits than its factorization.

11552563539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3153907 (or 3153904 counting only the distinct ones).

The product of its digits is 607500, while the sum is 45.

The spelling of 11552563539 in words is "eleven billion, five hundred fifty-two million, five hundred sixty-three thousand, five hundred thirty-nine".