705417553 has 2 divisors, whose sum is σ = 705417554. Its totient is φ = 705417552.

The previous prime is 705417523. The next prime is 705417571. The reversal of 705417553 is 355714507.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 635644944 + 69772609 = 25212^2 + 8353^2 .

It is an emirp because it is prime and its reverse (355714507) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 705417553 - 2²⁵ = 671863121 is a prime.

It is a super-2 number, since 2×705417553² = 995227848161015618, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (705417523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 352708776 + 352708777.

It is an arithmetic number, because the mean of its divisors is an integer number (352708777).

Almost surely, 2^705417553 is an apocalyptic number.

It is an amenable number.

705417553 is a deficient number, since it is larger than the sum of its proper divisors (1).

705417553 is an equidigital number, since it uses as much as digits as its factorization.

705417553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 73500, while the sum is 37.

The square root of 705417553 is about 26559.6979086736. The cubic root of 705417553 is about 890.1887210788.

The spelling of 705417553 in words is "seven hundred five million, four hundred seventeen thousand, five hundred fifty-three".