505780333 has 4 divisors (see below), whose sum is σ = 510507360. Its totient is φ = 501053308.

The previous prime is 505780309. The next prime is 505780349. The reversal of 505780333 is 333087505.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 505780333 - 2²¹ = 503683181 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 (505787333) 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, 2363353 + ... + 2363566.

It is an arithmetic number, because the mean of its divisors is an integer number (127626840).

Almost surely, 2^505780333 is an apocalyptic number.

It is an amenable number.

505780333 is a deficient number, since it is larger than the sum of its proper divisors (4727027).

505780333 is a wasteful number, since it uses less digits than its factorization.

505780333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4727026.

The product of its (nonzero) digits is 37800, while the sum is 34.

The square root of 505780333 is about 22489.5605337232. The cubic root of 505780333 is about 796.7473836351.

The spelling of 505780333 in words is "five hundred five million, seven hundred eighty thousand, three hundred thirty-three".