425204220605 has 4 divisors (see below), whose sum is σ = 510245064732. Its totient is φ = 340163376480.

The previous prime is 425204220589. The next prime is 425204220607. The reversal of 425204220605 is 506022402524.

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 67162350649 + 358041869956 = 259157^2 + 598366^2 .

It is not a de Polignac number, because 425204220605 - 2⁴ = 425204220589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425204220607) 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, 42520422056 + ... + 42520422065.

It is an arithmetic number, because the mean of its divisors is an integer number (127561266183).

Almost surely, 2^425204220605 is an apocalyptic number.

It is an amenable number.

425204220605 is a deficient number, since it is larger than the sum of its proper divisors (85040844127).

425204220605 is an equidigital number, since it uses as much as digits as its factorization.

425204220605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85040844126.

The product of its (nonzero) digits is 38400, while the sum is 32.

The spelling of 425204220605 in words is "four hundred twenty-five billion, two hundred four million, two hundred twenty thousand, six hundred five".