13252537 has 4 divisors (see below), whose sum is σ = 14032116. Its totient is φ = 12472960.

The previous prime is 13252529. The next prime is 13252559. The reversal of 13252537 is 73525231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9759376 + 3493161 = 3124^2 + 1869^2 .

It is a cyclic number.

It is not a de Polignac number, because 13252537 - 2³ = 13252529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13252567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 389764 + ... + 389797.

It is an arithmetic number, because the mean of its divisors is an integer number (3508029).

Almost surely, 2^13252537 is an apocalyptic number.

13252537 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

13252537 is a deficient number, since it is larger than the sum of its proper divisors (779579).

13252537 is an equidigital number, since it uses as much as digits as its factorization.

13252537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779578.

The product of its digits is 6300, while the sum is 28.

The square root of 13252537 is about 3640.4034117114. The cubic root of 13252537 is about 236.6462763186.

Adding to 13252537 its reverse (73525231), we get a palindrome (86777768).

The spelling of 13252537 in words is "thirteen million, two hundred fifty-two thousand, five hundred thirty-seven".