425647265 has 4 divisors (see below), whose sum is σ = 510776724. Its totient is φ = 340517808.

The previous prime is 425647259. The next prime is 425647283. The reversal of 425647265 is 562746524.

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 311734336 + 113912929 = 17656^2 + 10673^2 .

It is a cyclic number.

It is not a de Polignac number, because 425647265 - 2⁴ = 425647249 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42564722 + ... + 42564731.

It is an arithmetic number, because the mean of its divisors is an integer number (127694181).

Almost surely, 2^425647265 is an apocalyptic number.

It is an amenable number.

425647265 is a deficient number, since it is larger than the sum of its proper divisors (85129459).

425647265 is an equidigital number, since it uses as much as digits as its factorization.

425647265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85129458.

The product of its digits is 403200, while the sum is 41.

The square root of 425647265 is about 20631.2206376647. The cubic root of 425647265 is about 752.2287864169.

The spelling of 425647265 in words is "four hundred twenty-five million, six hundred forty-seven thousand, two hundred sixty-five".