173643057025 has 9 divisors (see below), whose sum is σ = 215319974313. Its totient is φ = 138912778800.

The previous prime is 173643057011. The next prime is 173643057031. The reversal of 173643057025 is 520750346371.

The square root of 173643057025 is 416705.

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 17542207809 + 156100849216 = 132447^2 + 395096^2 .

It is not a de Polignac number, because 173643057025 - 2⁷ = 173643056897 is a prime.

It is a super-2 number, since 2×173643057025² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2041855 + ... + 2125195.

Almost surely, 2^173643057025 is an apocalyptic number.

173643057025 is the 416705-th square number.

173643057025 is the 208353-rd centered octagonal number.

It is an amenable number.

173643057025 is a deficient number, since it is larger than the sum of its proper divisors (41676917288).

173643057025 is an frugal number, since it uses more digits than its factorization.

173643057025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166692 (or 83346 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 43.

The spelling of 173643057025 in words is "one hundred seventy-three billion, six hundred forty-three million, fifty-seven thousand, twenty-five".