12252891170569 has 15 divisors (see below), whose sum is σ = 14294389256007. Its totient is φ = 10502331128856.

The previous prime is 12252891170561. The next prime is 12252891170591. The reversal of 12252891170569 is 96507119825221.

It is a happy number.

The square root of 12252891170569 is 3500413.

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

It can be written as a sum of positive squares in only one way, i.e., 9446555925625 + 2806335244944 = 3073525^2 + 1675212^2 .

It is not a de Polignac number, because 12252891170569 - 2³ = 12252891170561 is a prime.

It is a super-2 number, since 2×12252891170569² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12252891170561) 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, 171484519 + ... + 171555955.

Almost surely, 2^{12252891170569} is an apocalyptic number.

12252891170569 is the 3500413-rd square number.

12252891170569 is the 1750207-th centered octagonal number.

It is an amenable number.

12252891170569 is a deficient number, since it is larger than the sum of its proper divisors (2041498085438).

12252891170569 is an frugal number, since it uses more digits than its factorization.

12252891170569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142902 (or 71444 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 58.

The spelling of 12252891170569 in words is "twelve trillion, two hundred fifty-two billion, eight hundred ninety-one million, one hundred seventy thousand, five hundred sixty-nine".