425399859 has 12 divisors (see below), whose sum is σ = 620105200. Its totient is φ = 280997424.

The previous prime is 425399851. The next prime is 425399861. The reversal of 425399859 is 958993524.

It is a happy number.

It is not a de Polignac number, because 425399859 - 2³ = 425399851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (425399851) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 215839 + ... + 217800.

Almost surely, 2^425399859 is an apocalyptic number.

425399859 is a deficient number, since it is larger than the sum of its proper divisors (194705341).

425399859 is a wasteful number, since it uses less digits than its factorization.

425399859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433754 (or 433751 counting only the distinct ones).

The product of its digits is 3499200, while the sum is 54.

The square root of 425399859 is about 20625.2238533307. The cubic root of 425399859 is about 752.0830147104.

The spelling of 425399859 in words is "four hundred twenty-five million, three hundred ninety-nine thousand, eight hundred fifty-nine".