505280047 has 2 divisors, whose sum is σ = 505280048. Its totient is φ = 505280046.

The previous prime is 505280003. The next prime is 505280059. The reversal of 505280047 is 740082505.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 505280047 - 2⁷ = 505279919 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 (505280947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252640023 + 252640024.

It is an arithmetic number, because the mean of its divisors is an integer number (252640024).

Almost surely, 2^505280047 is an apocalyptic number.

505280047 is a deficient number, since it is larger than the sum of its proper divisors (1).

505280047 is an equidigital number, since it uses as much as digits as its factorization.

505280047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11200, while the sum is 31.

The square root of 505280047 is about 22478.4351546099. The cubic root of 505280047 is about 796.4845995556.

The spelling of 505280047 in words is "five hundred five million, two hundred eighty thousand, forty-seven".