505403241 has 8 divisors (see below), whose sum is σ = 770138304. Its totient is φ = 288801840.

The previous prime is 505403237. The next prime is 505403273. The reversal of 505403241 is 142304505.

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

It is not a de Polignac number, because 505403241 - 2² = 505403237 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (505403221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12033390 + ... + 12033431.

It is an arithmetic number, because the mean of its divisors is an integer number (96267288).

Almost surely, 2^505403241 is an apocalyptic number.

It is an amenable number.

505403241 is a deficient number, since it is larger than the sum of its proper divisors (264735063).

505403241 is a wasteful number, since it uses less digits than its factorization.

505403241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24066831.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 505403241 is about 22481.1752584245. The cubic root of 505403241 is about 796.5493254774.

Adding to 505403241 its reverse (142304505), we get a palindrome (647707746).

The spelling of 505403241 in words is "five hundred five million, four hundred three thousand, two hundred forty-one".