513653797 has 2 divisors, whose sum is σ = 513653798. Its totient is φ = 513653796.

The previous prime is 513653783. The next prime is 513653851. The reversal of 513653797 is 797356315.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 373610241 + 140043556 = 19329^2 + 11834^2 .

It is a cyclic number.

It is not a de Polignac number, because 513653797 - 2²⁷ = 379436069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (513653737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256826898 + 256826899.

It is an arithmetic number, because the mean of its divisors is an integer number (256826899).

Almost surely, 2^513653797 is an apocalyptic number.

It is an amenable number.

513653797 is a deficient number, since it is larger than the sum of its proper divisors (1).

513653797 is an equidigital number, since it uses as much as digits as its factorization.

513653797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 595350, while the sum is 46.

The square root of 513653797 is about 22663.9316315594. The cubic root of 513653797 is about 800.8604268544.

The spelling of 513653797 in words is "five hundred thirteen million, six hundred fifty-three thousand, seven hundred ninety-seven".