505783133 has 16 divisors (see below), whose sum is σ = 559892736. Its totient is φ = 454460160.

The previous prime is 505783129. The next prime is 505783139. The reversal of 505783133 is 331387505.

It is a cyclic number.

It is not a de Polignac number, because 505783133 - 2² = 505783129 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 505783093 and 505783102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505783139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 289643 + ... + 291383.

It is an arithmetic number, because the mean of its divisors is an integer number (34993296).

Almost surely, 2^505783133 is an apocalyptic number.

It is an amenable number.

505783133 is a deficient number, since it is larger than the sum of its proper divisors (54109603).

505783133 is a wasteful number, since it uses less digits than its factorization.

505783133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2524.

The product of its (nonzero) digits is 37800, while the sum is 35.

The square root of 505783133 is about 22489.6227847423. The cubic root of 505783133 is about 796.7488538969.

The spelling of 505783133 in words is "five hundred five million, seven hundred eighty-three thousand, one hundred thirty-three".