12525419 has 4 divisors (see below), whose sum is σ = 12957360. Its totient is φ = 12093480.

The previous prime is 12525367. The next prime is 12525421. The reversal of 12525419 is 91452521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91452521 = 67 ⋅1364963.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12525419 is a prime.

It is a super-2 number, since 2×12525419² = 313772242251122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 431911 = 12525419 / (1 + 2 + 5 + 2 + 5 + 4 + 1 + 9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12525391 and 12525400.

It is not an unprimeable number, because it can be changed into a prime (12525439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215927 + ... + 215984.

It is an arithmetic number, because the mean of its divisors is an integer number (3239340).

Almost surely, 2^12525419 is an apocalyptic number.

12525419 is a deficient number, since it is larger than the sum of its proper divisors (431941).

12525419 is an equidigital number, since it uses as much as digits as its factorization.

12525419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431940.

The product of its digits is 3600, while the sum is 29.

The square root of 12525419 is about 3539.1268697237. The cubic root of 12525419 is about 232.2366478968.

The spelling of 12525419 in words is "twelve million, five hundred twenty-five thousand, four hundred nineteen".