425504000 has 72 divisors (see below), whose sum is σ = 1060063368. Its totient is φ = 170188800.

The previous prime is 425503987. The next prime is 425504003. The reversal of 425504000 is 405524.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 125798656 + 299705344 = 11216^2 + 17312^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425504003) 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, 25352 + ... + 38648.

Almost surely, 2^425504000 is an apocalyptic number.

425504000 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 425504000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (530031684).

425504000 is an abundant number, since it is smaller than the sum of its proper divisors (634559368).

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

425504000 is an equidigital number, since it uses as much as digits as its factorization.

425504000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13328 (or 13304 counting only the distinct ones).

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

The square root of 425504000 is about 20627.7483017415. The cubic root of 425504000 is about 752.1443815124.

Adding to 425504000 its reverse (405524), we get a palindrome (425909524).

The spelling of 425504000 in words is "four hundred twenty-five million, five hundred four thousand".