425812085 has 8 divisors (see below), whose sum is σ = 511090776. Its totient is φ = 340572160.

The previous prime is 425812069. The next prime is 425812099. The reversal of 425812085 is 580218524.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1493284 + 424318801 = 1222^2 + 20599^2 .

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

It is not a de Polignac number, because 425812085 - 2⁴ = 425812069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 27365 + ... + 40005.

It is an arithmetic number, because the mean of its divisors is an integer number (63886347).

Almost surely, 2^425812085 is an apocalyptic number.

It is an amenable number.

425812085 is a deficient number, since it is larger than the sum of its proper divisors (85278691).

425812085 is a wasteful number, since it uses less digits than its factorization.

425812085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19383.

The product of its (nonzero) digits is 25600, while the sum is 35.

The square root of 425812085 is about 20635.2146826729. The cubic root of 425812085 is about 752.3258670745.

The spelling of 425812085 in words is "four hundred twenty-five million, eight hundred twelve thousand, eighty-five".