12425551 has 2 divisors, whose sum is σ = 12425552. Its totient is φ = 12425550.

The previous prime is 12425509. The next prime is 12425573. The reversal of 12425551 is 15552421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12425551 - 2⁷ = 12425423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12425591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6212775 + 6212776.

It is an arithmetic number, because the mean of its divisors is an integer number (6212776).

Almost surely, 2^12425551 is an apocalyptic number.

12425551 is a deficient number, since it is larger than the sum of its proper divisors (1).

12425551 is an equidigital number, since it uses as much as digits as its factorization.

12425551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2000, while the sum is 25.

The square root of 12425551 is about 3524.9895035305. The cubic root of 12425551 is about 231.6177750513.

Adding to 12425551 its reverse (15552421), we get a palindrome (27977972).

The spelling of 12425551 in words is "twelve million, four hundred twenty-five thousand, five hundred fifty-one".