425120785 has 8 divisors (see below), whose sum is σ = 540153576. Its totient is φ = 320090880.

The previous prime is 425120779. The next prime is 425120821. The reversal of 425120785 is 587021524.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 51394561 + 373726224 = 7169^2 + 19332^2 .

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

It is not a de Polignac number, because 425120785 - 2³ = 425120777 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 425120785.

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, 2500626 + ... + 2500795.

It is an arithmetic number, because the mean of its divisors is an integer number (67519197).

Almost surely, 2^425120785 is an apocalyptic number.

It is an amenable number.

425120785 is a deficient number, since it is larger than the sum of its proper divisors (115032791).

425120785 is a wasteful number, since it uses less digits than its factorization.

425120785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5001443.

The product of its (nonzero) digits is 22400, while the sum is 34.

The square root of 425120785 is about 20618.4573865263. The cubic root of 425120785 is about 751.9185163569.

The spelling of 425120785 in words is "four hundred twenty-five million, one hundred twenty thousand, seven hundred eighty-five".