425819856 has 80 divisors (see below), whose sum is σ = 1371483648. Its totient is φ = 110601600.

The previous prime is 425819843. The next prime is 425819857. The reversal of 425819856 is 658918524.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425819857) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53910 + ... + 61301.

Almost surely, 2^425819856 is an apocalyptic number.

It is an amenable number.

425819856 is an abundant number, since it is smaller than the sum of its proper divisors (945663792).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

425819856 is a wasteful number, since it uses less digits than its factorization.

425819856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115240 (or 115234 counting only the distinct ones).

The product of its digits is 691200, while the sum is 48.

The square root of 425819856 is about 20635.4029764383. The cubic root of 425819856 is about 752.3304436541.

The spelling of 425819856 in words is "four hundred twenty-five million, eight hundred nineteen thousand, eight hundred fifty-six".