11520000052 has 18 divisors (see below), whose sum is σ = 22159339874. Its totient is φ = 5236363440.

The previous prime is 11520000047. The next prime is 11520000053. The reversal of 11520000052 is 25000002511.

It can be written as a sum of positive squares in only one way, i.e., 9722748816 + 1797251236 = 98604^2 + 42394^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11519999990 and 11520000035.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11520000053) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11900343 + ... + 11901310.

Almost surely, 2^11520000052 is an apocalyptic number.

It is an amenable number.

11520000052 is a deficient number, since it is larger than the sum of its proper divisors (10639339822).

11520000052 is a wasteful number, since it uses less digits than its factorization.

11520000052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23801679 (or 23801666 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 16.

Adding to 11520000052 its reverse (25000002511), we get a palindrome (36520002563).

The spelling of 11520000052 in words is "eleven billion, five hundred twenty million, fifty-two", and thus it is an aban number.