13530052 has 24 divisors (see below), whose sum is σ = 25401600. Its totient is φ = 6286176.

The previous prime is 13530019. The next prime is 13530059. The reversal of 13530052 is 25003531.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (13530059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2349 + ... + 5707.

It is an arithmetic number, because the mean of its divisors is an integer number (1058400).

Almost surely, 2^13530052 is an apocalyptic number.

It is an amenable number.

13530052 is a deficient number, since it is larger than the sum of its proper divisors (11871548).

13530052 is a wasteful number, since it uses less digits than its factorization.

13530052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3435 (or 3433 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 13530052 is about 3678.3218999973. The cubic root of 13530052 is about 238.2867104699.

Adding to 13530052 its reverse (25003531), we get a palindrome (38533583).

The spelling of 13530052 in words is "thirteen million, five hundred thirty thousand, fifty-two".