517153081 has 3 divisors (see below), whose sum is σ = 517175823. Its totient is φ = 517130340.

The previous prime is 517153061. The next prime is 517153099. The reversal of 517153081 is 180351715.

The square root of 517153081 is 22741.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 42784681 + 474368400 = 6541^2 + 21780^2 .

It is a de Polignac number, because none of the positive numbers 2^k-517153081 is a prime.

It is a super-2 number, since 2×517153081² = 534894618375585122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (517153051) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 11371 + ... + 34111.

It is an arithmetic number, because the mean of its divisors is an integer number (172391941).

Almost surely, 2^517153081 is an apocalyptic number.

517153081 is the 22741-st square number.

517153081 is the 11371-st centered octagonal number.

It is an amenable number.

517153081 is a deficient number, since it is larger than the sum of its proper divisors (22742).

517153081 is an frugal number, since it uses more digits than its factorization.

517153081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45482 (or 22741 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 31.

The cubic root of 517153081 is about 802.6749422404.

The spelling of 517153081 in words is "five hundred seventeen million, one hundred fifty-three thousand, eighty-one".