505566701 has 4 divisors (see below), whose sum is σ = 505620192. Its totient is φ = 505513212.

The previous prime is 505566673. The next prime is 505566707. The reversal of 505566701 is 107665505.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 505566701 - 2⁶ = 505566637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505566707) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8351 + ... + 32876.

It is an arithmetic number, because the mean of its divisors is an integer number (126405048).

Almost surely, 2^505566701 is an apocalyptic number.

It is an amenable number.

505566701 is a deficient number, since it is larger than the sum of its proper divisors (53491).

505566701 is a wasteful number, since it uses less digits than its factorization.

505566701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53490.

The product of its (nonzero) digits is 31500, while the sum is 35.

The square root of 505566701 is about 22484.8104506131. The cubic root of 505566701 is about 796.6351908535.

The spelling of 505566701 in words is "five hundred five million, five hundred sixty-six thousand, seven hundred one".