425193173 has 4 divisors (see below), whose sum is σ = 425746860. Its totient is φ = 424639488.

The previous prime is 425193169. The next prime is 425193187. The reversal of 425193173 is 371391524.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 286354084 + 138839089 = 16922^2 + 11783^2 .

It is a cyclic number.

It is not a de Polignac number, because 425193173 - 2² = 425193169 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425193143) 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 3 ways as a sum of consecutive naturals, for example, 275690 + ... + 277227.

It is an arithmetic number, because the mean of its divisors is an integer number (106436715).

Almost surely, 2^425193173 is an apocalyptic number.

It is an amenable number.

425193173 is a deficient number, since it is larger than the sum of its proper divisors (553687).

425193173 is an equidigital number, since it uses as much as digits as its factorization.

425193173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553686.

The product of its digits is 22680, while the sum is 35.

The square root of 425193173 is about 20620.2127292615. The cubic root of 425193173 is about 751.9611919057.

The spelling of 425193173 in words is "four hundred twenty-five million, one hundred ninety-three thousand, one hundred seventy-three".