505049999 has 4 divisors (see below), whose sum is σ = 505095960. Its totient is φ = 505004040.

The previous prime is 505049983. The next prime is 505050043. The reversal of 505049999 is 999940505.

It is a semiprime because it is the product of two primes, 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 505049999 - 2⁴ = 505049983 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 (505049929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4292 + ... + 32070.

It is an arithmetic number, because the mean of its divisors is an integer number (126273990).

Almost surely, 2^505049999 is an apocalyptic number.

505049999 is a deficient number, since it is larger than the sum of its proper divisors (45961).

505049999 is a wasteful number, since it uses less digits than its factorization.

505049999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45960.

The product of its (nonzero) digits is 656100, while the sum is 50.

The square root of 505049999 is about 22473.3174898589. The cubic root of 505049999 is about 796.3637045492.

The spelling of 505049999 in words is "five hundred five million, forty-nine thousand, nine hundred ninety-nine".