425597173 has 4 divisors (see below), whose sum is σ = 434652480. Its totient is φ = 416541868.

The previous prime is 425597153. The next prime is 425597177. The reversal of 425597173 is 371795524.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 425597173 - 2¹⁷ = 425466101 is a prime.

It is a super-2 number, since 2×425597173² = 362265907331183858, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425597177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4527583 + ... + 4527676.

It is an arithmetic number, because the mean of its divisors is an integer number (108663120).

Almost surely, 2^425597173 is an apocalyptic number.

It is an amenable number.

425597173 is a deficient number, since it is larger than the sum of its proper divisors (9055307).

425597173 is an equidigital number, since it uses as much as digits as its factorization.

425597173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9055306.

The product of its digits is 264600, while the sum is 43.

The square root of 425597173 is about 20630.0066165767. The cubic root of 425597173 is about 752.1992767535.

The spelling of 425597173 in words is "four hundred twenty-five million, five hundred ninety-seven thousand, one hundred seventy-three".