13505036056 has 8 divisors (see below), whose sum is σ = 25321942620. Its totient is φ = 6752518024.

The previous prime is 13505036033. The next prime is 13505036057. The reversal of 13505036056 is 65063050531.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13505036057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 844064746 + ... + 844064761.

Almost surely, 2^13505036056 is an apocalyptic number.

It is an amenable number.

13505036056 is a deficient number, since it is larger than the sum of its proper divisors (11816906564).

13505036056 is a wasteful number, since it uses less digits than its factorization.

13505036056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1688129513 (or 1688129509 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 34.

Adding to 13505036056 its reverse (65063050531), we get a palindrome (78568086587).

The spelling of 13505036056 in words is "thirteen billion, five hundred five million, thirty-six thousand, fifty-six".