505709011 has 8 divisors (see below), whose sum is σ = 508772880. Its totient is φ = 502652928.

The previous prime is 505709003. The next prime is 505709051. The reversal of 505709011 is 110907505.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 505709011 - 2³ = 505709003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505709051) 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 7 ways as a sum of consecutive naturals, for example, 173115 + ... + 176011.

It is an arithmetic number, because the mean of its divisors is an integer number (63596610).

Almost surely, 2^505709011 is an apocalyptic number.

505709011 is a deficient number, since it is larger than the sum of its proper divisors (3063869).

505709011 is a wasteful number, since it uses less digits than its factorization.

505709011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3893.

The product of its (nonzero) digits is 1575, while the sum is 28.

The square root of 505709011 is about 22487.9748087728. The cubic root of 505709011 is about 796.7099310861.

The spelling of 505709011 in words is "five hundred five million, seven hundred nine thousand, eleven".