505275847 has 2 divisors, whose sum is σ = 505275848. Its totient is φ = 505275846.

The previous prime is 505275839. The next prime is 505275899. The reversal of 505275847 is 748572505.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 505275847 - 2³ = 505275839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (505275347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252637923 + 252637924.

It is an arithmetic number, because the mean of its divisors is an integer number (252637924).

Almost surely, 2^505275847 is an apocalyptic number.

505275847 is a deficient number, since it is larger than the sum of its proper divisors (1).

505275847 is an equidigital number, since it uses as much as digits as its factorization.

505275847 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 392000, while the sum is 43.

The square root of 505275847 is about 22478.3417315424. The cubic root of 505275847 is about 796.4823926972.

The spelling of 505275847 in words is "five hundred five million, two hundred seventy-five thousand, eight hundred forty-seven".