425225000 has 96 divisors (see below), whose sum is σ = 1014544440. Its totient is φ = 167040000.

The previous prime is 425224973. The next prime is 425225033. The reversal of 425225000 is 522524.

It can be written as a sum of positive squares in 12 ways, for example, as 249450436 + 175774564 = 15794^2 + 13258^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1824884 + ... + 1825116.

Almost surely, 2^425225000 is an apocalyptic number.

425225000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 425225000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (507272220).

425225000 is an abundant number, since it is smaller than the sum of its proper divisors (589319440).

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

425225000 is an equidigital number, since it uses as much as digits as its factorization.

425225000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337 (or 313 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 425225000 is about 20620.9844575859. The cubic root of 425225000 is about 751.9799536304.

Adding to 425225000 its reverse (522524), we get a palindrome (425747524).

The spelling of 425225000 in words is "four hundred twenty-five million, two hundred twenty-five thousand".