505384539 has 8 divisors (see below), whose sum is σ = 735104832. Its totient is φ = 306293640.

The previous prime is 505384519. The next prime is 505384571. The reversal of 505384539 is 935483505.

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

It is a de Polignac number, because none of the positive numbers 2^k-505384539 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 505384539.

It is not an unprimeable number, because it can be changed into a prime (505384519) 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, 7657309 + ... + 7657374.

It is an arithmetic number, because the mean of its divisors is an integer number (91888104).

Almost surely, 2^505384539 is an apocalyptic number.

505384539 is a deficient number, since it is larger than the sum of its proper divisors (229720293).

505384539 is a wasteful number, since it uses less digits than its factorization.

505384539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15314697.

The product of its (nonzero) digits is 324000, while the sum is 42.

The square root of 505384539 is about 22480.7593065715. The cubic root of 505384539 is about 796.5395001550.

The spelling of 505384539 in words is "five hundred five million, three hundred eighty-four thousand, five hundred thirty-nine".