170425 has 12 divisors (see below), whose sum is σ = 224316. Its totient is φ = 128000.

The previous prime is 170413. The next prime is 170441. The reversal of 170425 is 524071.

It can be written as a sum of positive squares in 6 ways, for example, as 19881 + 150544 = 141^2 + 388^2 .

It is not a de Polignac number, because 170425 - 2⁵ = 170393 is a prime.

It is a Duffinian number.

170425 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 225 + ... + 625.

It is an arithmetic number, because the mean of its divisors is an integer number (18693).

2¹⁷⁰⁴²⁵ is an apocalyptic number.

It is an amenable number.

170425 is a deficient number, since it is larger than the sum of its proper divisors (53891).

170425 is a wasteful number, since it uses less digits than its factorization.

170425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428 (or 423 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 170425 is about 412.8256290494. The cubic root of 170425 is about 55.4427079698.

Adding to 170425 its reverse (524071), we get a palindrome (694496).

It can be divided in two parts, 170 and 425, that added together give a palindrome (595).

The spelling of 170425 in words is "one hundred seventy thousand, four hundred twenty-five".