12558425 has 12 divisors (see below), whose sum is σ = 16988496. Its totient is φ = 9133200.

The previous prime is 12558419. The next prime is 12558439. The reversal of 12558425 is 52485521.

It is not a de Polignac number, because 12558425 - 2⁶ = 12558361 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12558391 and 12558400.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22559 + ... + 23108.

It is an arithmetic number, because the mean of its divisors is an integer number (1415708).

Almost surely, 2^12558425 is an apocalyptic number.

It is an amenable number.

12558425 is a deficient number, since it is larger than the sum of its proper divisors (4430071).

12558425 is a wasteful number, since it uses less digits than its factorization.

12558425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45688 (or 45683 counting only the distinct ones).

The product of its digits is 16000, while the sum is 32.

The square root of 12558425 is about 3543.7868163872. The cubic root of 12558425 is about 232.4404595678.

The spelling of 12558425 in words is "twelve million, five hundred fifty-eight thousand, four hundred twenty-five".