13532506 has 12 divisors (see below), whose sum is σ = 21980862. Its totient is φ = 6245616.

The previous prime is 13532489. The next prime is 13532513. The reversal of 13532506 is 60523531.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 8732025 + 4800481 = 2955^2 + 2191^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19681 + ... + 20356.

Almost surely, 2^13532506 is an apocalyptic number.

13532506 is a deficient number, since it is larger than the sum of its proper divisors (8448356).

13532506 is a wasteful number, since it uses less digits than its factorization.

13532506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40065 (or 40052 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 13532506 is about 3678.6554608987. The cubic root of 13532506 is about 238.3011159390.

Subtracting 13532506 from its reverse (60523531), we obtain a square (46991025 = 6855²).

The spelling of 13532506 in words is "thirteen million, five hundred thirty-two thousand, five hundred six".