5271195609 has 21 divisors (see below), whose sum is σ = 7906118223. Its totient is φ = 3512823552.

The previous prime is 5271195583. The next prime is 5271195659. The reversal of 5271195609 is 9065911725.

The square root of 5271195609 is 72603.

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

5271195609 is a `hidden beast` number, since 5 + 2 + 71 + 19 + 560 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 190357209 + 5080838400 = 13797^2 + 71280^2 .

It is not a de Polignac number, because 5271195609 - 2¹¹ = 5271193561 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5271195659) by changing a digit.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 1958937 + ... + 1961625.

Almost surely, 2^5271195609 is an apocalyptic number.

5271195609 is the 72603-rd square number.

5271195609 is the 36302-nd centered octagonal number.

It is an amenable number.

5271195609 is a deficient number, since it is larger than the sum of its proper divisors (2634922614).

5271195609 is an frugal number, since it uses more digits than its factorization.

5271195609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5396 (or 2692 counting only the distinct ones).

The product of its (nonzero) digits is 170100, while the sum is 45.

The cubic root of 5271195609 is about 1740.3491184133.

The spelling of 5271195609 in words is "five billion, two hundred seventy-one million, one hundred ninety-five thousand, six hundred nine".