513442417 has 2 divisors, whose sum is σ = 513442418. Its totient is φ = 513442416.

The previous prime is 513442379. The next prime is 513442427. The reversal of 513442417 is 714244315.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 257570401 + 255872016 = 16049^2 + 15996^2 .

It is a cyclic number.

It is not a de Polignac number, because 513442417 - 2⁷ = 513442289 is a prime.

It is not a weakly prime, because it can be changed into another prime (513442427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256721208 + 256721209.

It is an arithmetic number, because the mean of its divisors is an integer number (256721209).

Almost surely, 2^513442417 is an apocalyptic number.

It is an amenable number.

513442417 is a deficient number, since it is larger than the sum of its proper divisors (1).

513442417 is an equidigital number, since it uses as much as digits as its factorization.

513442417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13440, while the sum is 31.

The square root of 513442417 is about 22659.2677948781. The cubic root of 513442417 is about 800.7505544689.

The spelling of 513442417 in words is "five hundred thirteen million, four hundred forty-two thousand, four hundred seventeen".