425481865 has 8 divisors (see below), whose sum is σ = 540612360. Its totient is φ = 320362752.

The previous prime is 425481857. The next prime is 425481869. The reversal of 425481865 is 568184524.

It can be written as a sum of positive squares in 4 ways, for example, as 18088009 + 407393856 = 4253^2 + 20184^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 425481865 - 2³ = 425481857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (425481869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2502750 + ... + 2502919.

It is an arithmetic number, because the mean of its divisors is an integer number (67576545).

Almost surely, 2^425481865 is an apocalyptic number.

It is an amenable number.

425481865 is a deficient number, since it is larger than the sum of its proper divisors (115130495).

425481865 is a wasteful number, since it uses less digits than its factorization.

425481865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5005691.

The product of its digits is 307200, while the sum is 43.

The square root of 425481865 is about 20627.2117601968. The cubic root of 425481865 is about 752.1313389365.

The spelling of 425481865 in words is "four hundred twenty-five million, four hundred eighty-one thousand, eight hundred sixty-five".