13231156552 has 8 divisors (see below), whose sum is σ = 24808418550. Its totient is φ = 6615578272.

The previous prime is 13231156529. The next prime is 13231156577. The reversal of 13231156552 is 25565113231.

It can be written as a sum of positive squares in only one way, i.e., 11705941636 + 1525214916 = 108194^2 + 39054^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 826947277 + ... + 826947292.

Almost surely, 2^13231156552 is an apocalyptic number.

It is an amenable number.

13231156552 is a deficient number, since it is larger than the sum of its proper divisors (11577261998).

13231156552 is a wasteful number, since it uses less digits than its factorization.

13231156552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1653894575 (or 1653894571 counting only the distinct ones).

The product of its digits is 27000, while the sum is 34.

Adding to 13231156552 its reverse (25565113231), we get a palindrome (38796269783).

The spelling of 13231156552 in words is "thirteen billion, two hundred thirty-one million, one hundred fifty-six thousand, five hundred fifty-two".