505788965 has 8 divisors (see below), whose sum is σ = 662123808. Its totient is φ = 367846480.

The previous prime is 505788961. The next prime is 505788977. The reversal of 505788965 is 569887505.

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

It is not a de Polignac number, because 505788965 - 2² = 505788961 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 (505788961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4598027 + ... + 4598136.

It is an arithmetic number, because the mean of its divisors is an integer number (82765476).

Almost surely, 2^505788965 is an apocalyptic number.

505788965 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

505788965 is a deficient number, since it is larger than the sum of its proper divisors (156334843).

505788965 is a wasteful number, since it uses less digits than its factorization.

505788965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9196179.

The product of its (nonzero) digits is 3024000, while the sum is 53.

The square root of 505788965 is about 22489.7524441689. The cubic root of 505788965 is about 796.7519162249.

The spelling of 505788965 in words is "five hundred five million, seven hundred eighty-eight thousand, nine hundred sixty-five".