513753797 has 2 divisors, whose sum is σ = 513753798. Its totient is φ = 513753796.

The previous prime is 513753791. The next prime is 513753811. The reversal of 513753797 is 797357315.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 513747556 + 6241 = 22666^2 + 79^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-513753797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (513753791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256876898 + 256876899.

It is an arithmetic number, because the mean of its divisors is an integer number (256876899).

Almost surely, 2^513753797 is an apocalyptic number.

It is an amenable number.

513753797 is a deficient number, since it is larger than the sum of its proper divisors (1).

513753797 is an equidigital number, since it uses as much as digits as its factorization.

513753797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 694575, while the sum is 47.

The square root of 513753797 is about 22666.1376727487. The cubic root of 513753797 is about 800.9123949612.

The spelling of 513753797 in words is "five hundred thirteen million, seven hundred fifty-three thousand, seven hundred ninety-seven".