505540927 has 2 divisors, whose sum is σ = 505540928. Its totient is φ = 505540926.

The previous prime is 505540909. The next prime is 505540933. The reversal of 505540927 is 729045505.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 505540927 - 2¹¹ = 505538879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (505540957) 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, 252770463 + 252770464.

It is an arithmetic number, because the mean of its divisors is an integer number (252770464).

Almost surely, 2^505540927 is an apocalyptic number.

505540927 is a deficient number, since it is larger than the sum of its proper divisors (1).

505540927 is an equidigital number, since it uses as much as digits as its factorization.

505540927 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63000, while the sum is 37.

The square root of 505540927 is about 22484.2373008292. The cubic root of 505540927 is about 796.6216530260.

The spelling of 505540927 in words is "five hundred five million, five hundred forty thousand, nine hundred twenty-seven".