425520000 has 320 divisors, whose sum is σ = 1577307600. Its totient is φ = 112896000.

The previous prime is 425519989. The next prime is 425520019. The reversal of 425520000 is 25524.

It is a tau number, because it is divible by the number of its divisors (320).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2159902 + ... + 2160098.

Almost surely, 2^425520000 is an apocalyptic number.

425520000 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 425520000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (788653800).

425520000 is an abundant number, since it is smaller than the sum of its proper divisors (1151787600).

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

425520000 is an equidigital number, since it uses as much as digits as its factorization.

425520000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240 (or 207 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 425520000 is about 20628.1361252053. The cubic root of 425520000 is about 752.1538088889.

Adding to 425520000 its reverse (25524), we get a palindrome (425545524).

The spelling of 425520000 in words is "four hundred twenty-five million, five hundred twenty thousand".