506313403 has 2 divisors, whose sum is σ = 506313404. Its totient is φ = 506313402.

The previous prime is 506313341. The next prime is 506313497. The reversal of 506313403 is 304313605.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 506313403 - 2¹³ = 506305211 is a prime.

It is not a weakly prime, because it can be changed into another prime (506313803) 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 as a sum of consecutive naturals, namely, 253156701 + 253156702.

It is an arithmetic number, because the mean of its divisors is an integer number (253156702).

Almost surely, 2^506313403 is an apocalyptic number.

506313403 is a deficient number, since it is larger than the sum of its proper divisors (1).

506313403 is an equidigital number, since it uses as much as digits as its factorization.

506313403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 506313403 is about 22501.4089114437. The cubic root of 506313403 is about 797.0271974690.

The spelling of 506313403 in words is "five hundred six million, three hundred thirteen thousand, four hundred three".