425256189 has 8 divisors (see below), whose sum is σ = 567402720. Its totient is φ = 283306896.

The previous prime is 425256137. The next prime is 425256191. The reversal of 425256189 is 981652524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 425256189 - 2¹⁶ = 425190653 is a prime.

It is a super-3 number, since 3×425256189³ (a number of 27 digits) contains 333 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 425256189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425256389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44202 + ... + 52955.

It is an arithmetic number, because the mean of its divisors is an integer number (70925340).

Almost surely, 2^425256189 is an apocalyptic number.

It is an amenable number.

425256189 is a deficient number, since it is larger than the sum of its proper divisors (142146531).

425256189 is a wasteful number, since it uses less digits than its factorization.

425256189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98619.

The product of its digits is 172800, while the sum is 42.

The square root of 425256189 is about 20621.7406879245. The cubic root of 425256189 is about 751.9983383517.

The spelling of 425256189 in words is "four hundred twenty-five million, two hundred fifty-six thousand, one hundred eighty-nine".