425254009 has 4 divisors (see below), whose sum is σ = 435626100. Its totient is φ = 414881920.

The previous prime is 425253971. The next prime is 425254019. The reversal of 425254009 is 900452524.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 36060025 + 389193984 = 6005^2 + 19728^2 .

It is a cyclic number.

It is not a de Polignac number, because 425254009 - 2¹¹ = 425251961 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (425254019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5185984 + ... + 5186065.

It is an arithmetic number, because the mean of its divisors is an integer number (108906525).

Almost surely, 2^425254009 is an apocalyptic number.

It is an amenable number.

425254009 is a deficient number, since it is larger than the sum of its proper divisors (10372091).

425254009 is a wasteful number, since it uses less digits than its factorization.

425254009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10372090.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 425254009 is about 20621.6878310191. The cubic root of 425254009 is about 751.9970533544.

The spelling of 425254009 in words is "four hundred twenty-five million, two hundred fifty-four thousand, nine".