5195670561 has 15 divisors (see below), whose sum is σ = 7762403011. Its totient is φ = 3463347888.

The previous prime is 5195670553. The next prime is 5195670563. The reversal of 5195670561 is 1650765915.

The square root of 5195670561 is 72081.

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

5195670561 is a `hidden beast` number, since 5 + 19 + 5 + 6 + 70 + 561 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3360404961 + 1835265600 = 57969^2 + 42840^2 .

It is not a de Polignac number, because 5195670561 - 2³ = 5195670553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5195670563) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 644725 + ... + 652733.

Almost surely, 2^5195670561 is an apocalyptic number.

5195670561 is the 72081-st square number.

5195670561 is the 36041-st centered octagonal number.

It is an amenable number.

5195670561 is a deficient number, since it is larger than the sum of its proper divisors (2566732450).

5195670561 is an frugal number, since it uses more digits than its factorization.

5195670561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16030 (or 8012 counting only the distinct ones).

The product of its (nonzero) digits is 283500, while the sum is 45.

The cubic root of 5195670561 is about 1731.9972657242.

The spelling of 5195670561 in words is "five billion, one hundred ninety-five million, six hundred seventy thousand, five hundred sixty-one".