13025437 has 4 divisors (see below), whose sum is σ = 13474620. Its totient is φ = 12576256.

The previous prime is 13025407. The next prime is 13025459. The reversal of 13025437 is 73452031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 73452031 = 1549 ⋅47419.

It can be written as a sum of positive squares in 2 ways, for example, as 7365796 + 5659641 = 2714^2 + 2379^2 .

It is not a de Polignac number, because 13025437 - 2¹¹ = 13023389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13025407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224548 + ... + 224605.

It is an arithmetic number, because the mean of its divisors is an integer number (3368655).

Almost surely, 2^13025437 is an apocalyptic number.

It is an amenable number.

13025437 is a deficient number, since it is larger than the sum of its proper divisors (449183).

13025437 is an equidigital number, since it uses as much as digits as its factorization.

13025437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449182.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 13025437 is about 3609.0770288261. The cubic root of 13025437 is about 235.2867301369.

Adding to 13025437 its reverse (73452031), we get a palindrome (86477468).

The spelling of 13025437 in words is "thirteen million, twenty-five thousand, four hundred thirty-seven".