505955027 has 4 divisors (see below), whose sum is σ = 506085120. Its totient is φ = 505824936.

The previous prime is 505954993. The next prime is 505955029. The reversal of 505955027 is 720559505.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 505955027 - 2¹² = 505950931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505955029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59027 + ... + 67052.

It is an arithmetic number, because the mean of its divisors is an integer number (126521280).

Almost surely, 2^505955027 is an apocalyptic number.

505955027 is a deficient number, since it is larger than the sum of its proper divisors (130093).

505955027 is a wasteful number, since it uses less digits than its factorization.

505955027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130092.

The product of its (nonzero) digits is 78750, while the sum is 38.

The square root of 505955027 is about 22493.4440893341. Note that the first 3 decimals coincide. The cubic root of 505955027 is about 796.8391039312.

The spelling of 505955027 in words is "five hundred five million, nine hundred fifty-five thousand, twenty-seven".