12548551 has 2 divisors, whose sum is σ = 12548552. Its totient is φ = 12548550.

The previous prime is 12548491. The next prime is 12548563. The reversal of 12548551 is 15584521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12548551 - 2⁷ = 12548423 is a prime.

It is a super-2 number, since 2×12548551² = 314932264399202, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12548351) 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 as a sum of consecutive naturals, namely, 6274275 + 6274276.

It is an arithmetic number, because the mean of its divisors is an integer number (6274276).

Almost surely, 2^12548551 is an apocalyptic number.

12548551 is a deficient number, since it is larger than the sum of its proper divisors (1).

12548551 is an equidigital number, since it uses as much as digits as its factorization.

12548551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8000, while the sum is 31.

The square root of 12548551 is about 3542.3933999487. The cubic root of 12548551 is about 232.3795252051.

The spelling of 12548551 in words is "twelve million, five hundred forty-eight thousand, five hundred fifty-one".