425556648 has 96 divisors (see below), whose sum is σ = 1331328960. Its totient is φ = 121367040.

The previous prime is 425556641. The next prime is 425556653. The reversal of 425556648 is 846655524.

425556648 is a `hidden beast` number, since 42 + 5 + 5 + 566 + 48 = 666.

It is not an unprimeable number, because it can be changed into a prime (425556641) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2340 + ... + 29267.

It is an arithmetic number, because the mean of its divisors is an integer number (13868010).

Almost surely, 2^425556648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 425556648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (665664480).

425556648 is an abundant number, since it is smaller than the sum of its proper divisors (905772312).

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

425556648 is a wasteful number, since it uses less digits than its factorization.

425556648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31647 (or 31640 counting only the distinct ones).

The product of its digits is 1152000, while the sum is 45.

The square root of 425556648 is about 20629.0244073732. The cubic root of 425556648 is about 752.1754014043.

The spelling of 425556648 in words is "four hundred twenty-five million, five hundred fifty-six thousand, six hundred forty-eight".