505127947 has 2 divisors, whose sum is σ = 505127948. Its totient is φ = 505127946.

The previous prime is 505127933. The next prime is 505127951. The reversal of 505127947 is 749721505.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 505127947 - 2¹⁵ = 505095179 is a prime.

It is not a weakly prime, because it can be changed into another prime (505124947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252563973 + 252563974.

It is an arithmetic number, because the mean of its divisors is an integer number (252563974).

Almost surely, 2^505127947 is an apocalyptic number.

505127947 is a deficient number, since it is larger than the sum of its proper divisors (1).

505127947 is an equidigital number, since it uses as much as digits as its factorization.

505127947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 88200, while the sum is 40.

The square root of 505127947 is about 22475.0516573377. The cubic root of 505127947 is about 796.4046719550.

The spelling of 505127947 in words is "five hundred five million, one hundred twenty-seven thousand, nine hundred forty-seven".