425585855 has 4 divisors (see below), whose sum is σ = 510703032. Its totient is φ = 340468680.

The previous prime is 425585833. The next prime is 425585873. The reversal of 425585855 is 558585524.

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

It is not a de Polignac number, because 425585855 - 2⁶ = 425585791 is a prime.

It is a super-2 number, since 2×425585855² = 362246639952162050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent 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, 42558581 + ... + 42558590.

It is an arithmetic number, because the mean of its divisors is an integer number (127675758).

Almost surely, 2^425585855 is an apocalyptic number.

425585855 is a deficient number, since it is larger than the sum of its proper divisors (85117177).

425585855 is an equidigital number, since it uses as much as digits as its factorization.

425585855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85117176.

The product of its digits is 1600000, while the sum is 47.

The square root of 425585855 is about 20629.7323055826. The cubic root of 425585855 is about 752.1926088936.

The spelling of 425585855 in words is "four hundred twenty-five million, five hundred eighty-five thousand, eight hundred fifty-five".