69519158974225 has 27 divisors (see below), whose sum is σ = 87513099836337. Its totient is φ = 54783046486080.

The previous prime is 69519158974211. The next prime is 69519158974249. The reversal of 69519158974225 is 52247985191596.

The square root of 69519158974225 is 8337815.

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

69519158974225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 40238203402881 + 29280955571344 = 6343359^2 + 5411188^2 .

It is not a de Polignac number, because 69519158974225 - 2⁹ = 69519158973713 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2793155581 + ... + 2793180469.

Almost surely, 2^{69519158974225} is an apocalyptic number.

69519158974225 is the 8337815-th square number.

69519158974225 is the 4168908-th centered octagonal number.

It is an amenable number.

69519158974225 is a deficient number, since it is larger than the sum of its proper divisors (17993940862112).

69519158974225 is an frugal number, since it uses more digits than its factorization.

69519158974225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49922 (or 24961 counting only the distinct ones).

The product of its digits is 489888000, while the sum is 73.

The spelling of 69519158974225 in words is "sixty-nine trillion, five hundred nineteen billion, one hundred fifty-eight million, nine hundred seventy-four thousand, two hundred twenty-five".