505900083 has 8 divisors (see below), whose sum is σ = 726420688. Its totient is φ = 311323104.

The previous prime is 505900051. The next prime is 505900097. The reversal of 505900083 is 380009505.

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

It is not a de Polignac number, because 505900083 - 2⁵ = 505900051 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 505900083.

It is not an unprimeable number, because it can be changed into a prime (505900013) 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, 6485860 + ... + 6485937.

It is an arithmetic number, because the mean of its divisors is an integer number (90802586).

Almost surely, 2^505900083 is an apocalyptic number.

505900083 is a deficient number, since it is larger than the sum of its proper divisors (220520605).

505900083 is a wasteful number, since it uses less digits than its factorization.

505900083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12971813.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 505900083 is about 22492.2227225323. Note that the first 3 decimals coincide. The cubic root of 505900083 is about 796.8102587372.

Adding to 505900083 its reverse (380009505), we get a palindrome (885909588).

The spelling of 505900083 in words is "five hundred five million, nine hundred thousand, eighty-three".