425643850 has 12 divisors (see below), whose sum is σ = 791697654. Its totient is φ = 170257520.

The previous prime is 425643847. The next prime is 425643851. The reversal of 425643850 is 58346524.

It can be written as a sum of positive squares in 3 ways, for example, as 395492769 + 30151081 = 19887^2 + 5491^2 .

It is not an unprimeable number, because it can be changed into a prime (425643851) 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 5 ways as a sum of consecutive naturals, for example, 4256389 + ... + 4256488.

Almost surely, 2^425643850 is an apocalyptic number.

425643850 is a deficient number, since it is larger than the sum of its proper divisors (366053804).

425643850 is a wasteful number, since it uses less digits than its factorization.

425643850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8512889 (or 8512884 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 37.

The square root of 425643850 is about 20631.1378745817. The cubic root of 425643850 is about 752.2267746822.

The spelling of 425643850 in words is "four hundred twenty-five million, six hundred forty-three thousand, eight hundred fifty".