12425537 has 4 divisors (see below), whose sum is σ = 12435456. Its totient is φ = 12415620.

The previous prime is 12425509. The next prime is 12425551. The reversal of 12425537 is 73552421.

It is a happy number.

12425537 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12425537 - 2⁶ = 12425473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12425597) 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, 2753 + ... + 5694.

It is an arithmetic number, because the mean of its divisors is an integer number (3108864).

Almost surely, 2^12425537 is an apocalyptic number.

It is an amenable number.

12425537 is a deficient number, since it is larger than the sum of its proper divisors (9919).

12425537 is an equidigital number, since it uses as much as digits as its factorization.

12425537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9918.

The product of its digits is 8400, while the sum is 29.

The square root of 12425537 is about 3524.9875177084. The cubic root of 12425537 is about 231.6176880626.

Adding to 12425537 its reverse (73552421), we get a palindrome (85977958).

The spelling of 12425537 in words is "twelve million, four hundred twenty-five thousand, five hundred thirty-seven".