13520340052 has 24 divisors (see below), whose sum is σ = 24370192224. Its totient is φ = 6558482592.

The previous prime is 13520340007. The next prime is 13520340061. The reversal of 13520340052 is 25004302531.

It is a junction number, because it is equal to n+sod(n) for n = 13520339999 and 13520340026.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80278 + ... + 182989.

It is an arithmetic number, because the mean of its divisors is an integer number (1015424676).

Almost surely, 2^13520340052 is an apocalyptic number.

It is an amenable number.

13520340052 is a deficient number, since it is larger than the sum of its proper divisors (10849852172).

13520340052 is a wasteful number, since it uses less digits than its factorization.

13520340052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263655 (or 263653 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

Adding to 13520340052 its reverse (25004302531), we get a palindrome (38524642583).

The spelling of 13520340052 in words is "thirteen billion, five hundred twenty million, three hundred forty thousand, fifty-two".