16225000 has 96 divisors (see below), whose sum is σ = 42184800. Its totient is φ = 5800000.

The previous prime is 16224979. The next prime is 16225003. The reversal of 16225000 is 52261.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (16225003) 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, 274971 + ... + 275029.

It is an arithmetic number, because the mean of its divisors is an integer number (439425).

Almost surely, 2^16225000 is an apocalyptic number.

16225000 is a gapful number since it is divisible by the number (10) 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 16225000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21092400).

16225000 is an abundant number, since it is smaller than the sum of its proper divisors (25959800).

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

16225000 is an equidigital number, since it uses as much as digits as its factorization.

16225000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101 (or 77 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 16225000 is about 4028.0268122246. The cubic root of 16225000 is about 253.1598920554.

Adding to 16225000 its reverse (52261), we get a palindrome (16277261).

The spelling of 16225000 in words is "sixteen million, two hundred twenty-five thousand".