12555047 has 2 divisors, whose sum is σ = 12555048. Its totient is φ = 12555046.

The previous prime is 12555043. The next prime is 12555071. The reversal of 12555047 is 74055521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12555047 - 2² = 12555043 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12555041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6277523 + 6277524.

It is an arithmetic number, because the mean of its divisors is an integer number (6277524).

Almost surely, 2^12555047 is an apocalyptic number.

12555047 is a deficient number, since it is larger than the sum of its proper divisors (1).

12555047 is an equidigital number, since it uses as much as digits as its factorization.

12555047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7000, while the sum is 29.

The square root of 12555047 is about 3543.3101755280. The cubic root of 12555047 is about 232.4196168723.

It can be divided in two parts, 1255504 and 7, that multiplied together give a triangular number (8788528 = T₄₁₉₂).

The spelling of 12555047 in words is "twelve million, five hundred fifty-five thousand, forty-seven".