17157070225 has 81 divisors (see below), whose sum is σ = 23983039857. Its totient is φ = 12172174080.

The previous prime is 17157070223. The next prime is 17157070253. The reversal of 17157070225 is 52207075171.

The square root of 17157070225 is 130985.

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

It can be written as a sum of positive squares in 4 ways, for example, as 401321089 + 16755749136 = 20033^2 + 129444^2 .

It is not a de Polignac number, because 17157070225 - 2¹ = 17157070223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (17157070223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 256075642 + ... + 256075708.

Almost surely, 2^17157070225 is an apocalyptic number.

17157070225 is the 130985-th square number.

17157070225 is the 65493-rd centered octagonal number.

It is an amenable number.

17157070225 is a deficient number, since it is larger than the sum of its proper divisors (6825969632).

17157070225 is an equidigital number, since it uses as much as digits as its factorization.

17157070225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224 (or 112 counting only the distinct ones).

The product of its (nonzero) digits is 34300, while the sum is 37.

The spelling of 17157070225 in words is "seventeen billion, one hundred fifty-seven million, seventy thousand, two hundred twenty-five".