501701513 has 2 divisors, whose sum is σ = 501701514. Its totient is φ = 501701512.

The previous prime is 501701503. The next prime is 501701531. The reversal of 501701513 is 315107105.

Together with next prime (501701531) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 285846649 + 215854864 = 16907^2 + 14692^2 .

It is a cyclic number.

It is not a de Polignac number, because 501701513 - 2⁸ = 501701257 is a prime.

It is not a weakly prime, because it can be changed into another prime (501701503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250850756 + 250850757.

It is an arithmetic number, because the mean of its divisors is an integer number (250850757).

Almost surely, 2^501701513 is an apocalyptic number.

It is an amenable number.

501701513 is a deficient number, since it is larger than the sum of its proper divisors (1).

501701513 is an equidigital number, since it uses as much as digits as its factorization.

501701513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 525, while the sum is 23.

The square root of 501701513 is about 22398.6944485611. The cubic root of 501701513 is about 794.5998344729.

Adding to 501701513 its reverse (315107105), we get a palindrome (816808618).

The spelling of 501701513 in words is "five hundred one million, seven hundred one thousand, five hundred thirteen".