425087185 has 4 divisors (see below), whose sum is σ = 510104628. Its totient is φ = 340069744.

The previous prime is 425087183. The next prime is 425087213. The reversal of 425087185 is 581780524.

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 190108944 + 234978241 = 13788^2 + 15329^2 .

It is a cyclic number.

It is not a de Polignac number, because 425087185 - 2¹ = 425087183 is a prime.

It is a super-2 number, since 2×425087185² = 361398229702448450, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (425087183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42508714 + ... + 42508723.

It is an arithmetic number, because the mean of its divisors is an integer number (127526157).

Almost surely, 2^425087185 is an apocalyptic number.

It is an amenable number.

425087185 is a deficient number, since it is larger than the sum of its proper divisors (85017443).

425087185 is an equidigital number, since it uses as much as digits as its factorization.

425087185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85017442.

The product of its (nonzero) digits is 89600, while the sum is 40.

The square root of 425087185 is about 20617.6425665011. The cubic root of 425087185 is about 751.8987062004.

The spelling of 425087185 in words is "four hundred twenty-five million, eighty-seven thousand, one hundred eighty-five".