425200209 has 24 divisors (see below), whose sum is σ = 688289088. Its totient is φ = 228675840.

The previous prime is 425200207. The next prime is 425200213. The reversal of 425200209 is 902002524.

It is not a de Polignac number, because 425200209 - 2¹ = 425200207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (425200207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28962 + ... + 41099.

It is an arithmetic number, because the mean of its divisors is an integer number (28678712).

Almost surely, 2^425200209 is an apocalyptic number.

It is an amenable number.

425200209 is a deficient number, since it is larger than the sum of its proper divisors (263088879).

425200209 is a wasteful number, since it uses less digits than its factorization.

425200209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70105 (or 70088 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 425200209 is about 20620.3833378529. The cubic root of 425200209 is about 751.9653396438.

The spelling of 425200209 in words is "four hundred twenty-five million, two hundred thousand, two hundred nine".