505541803 has 8 divisors (see below), whose sum is σ = 544992896. Its totient is φ = 466171200.

The previous prime is 505541791. The next prime is 505541807. The reversal of 505541803 is 308145505.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-505541803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505541807) 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, 6738 + ... + 32503.

It is an arithmetic number, because the mean of its divisors is an integer number (68124112).

Almost surely, 2^505541803 is an apocalyptic number.

505541803 is a deficient number, since it is larger than the sum of its proper divisors (39451093).

505541803 is a wasteful number, since it uses less digits than its factorization.

505541803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40245.

The product of its (nonzero) digits is 12000, while the sum is 31.

The square root of 505541803 is about 22484.2567811347. The cubic root of 505541803 is about 796.6221131537.

The spelling of 505541803 in words is "five hundred five million, five hundred forty-one thousand, eight hundred three".