12555071 has 2 divisors, whose sum is σ = 12555072. Its totient is φ = 12555070.

The previous prime is 12555047. The next prime is 12555077. The reversal of 12555071 is 17055521.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12555071 - 2¹⁸ = 12292927 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12555071.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12555077) 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, 6277535 + 6277536.

It is an arithmetic number, because the mean of its divisors is an integer number (6277536).

Almost surely, 2^12555071 is an apocalyptic number.

12555071 is a deficient number, since it is larger than the sum of its proper divisors (1).

12555071 is an equidigital number, since it uses as much as digits as its factorization.

12555071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1750, while the sum is 26.

The square root of 12555071 is about 3543.3135621901. The cubic root of 12555071 is about 232.4197649686.

The spelling of 12555071 in words is "twelve million, five hundred fifty-five thousand, seventy-one".