13530344252 has 24 divisors (see below), whose sum is σ = 23744710080. Its totient is φ = 6746169600.

The previous prime is 13530344237. The next prime is 13530344327. The reversal of 13530344252 is 25244303531.

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, 2495048 + ... + 2500464.

It is an arithmetic number, because the mean of its divisors is an integer number (989362920).

Almost surely, 2^13530344252 is an apocalyptic number.

It is an amenable number.

13530344252 is a deficient number, since it is larger than the sum of its proper divisors (10214365828).

13530344252 is a wasteful number, since it uses less digits than its factorization.

13530344252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7061 (or 7059 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 32.

Adding to 13530344252 its reverse (25244303531), we get a palindrome (38774647783).

The spelling of 13530344252 in words is "thirteen billion, five hundred thirty million, three hundred forty-four thousand, two hundred fifty-two".