1632225 has 24 divisors (see below), whose sum is σ = 3085120. Its totient is φ = 745920.

The previous prime is 1632209. The next prime is 1632227. The reversal of 1632225 is 5222361.

It is not a de Polignac number, because 1632225 - 2⁴ = 1632209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (1632227) 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, 1030 + ... + 2079.

2^1632225 is an apocalyptic number.

1632225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1632225 is a deficient number, since it is larger than the sum of its proper divisors (1452895).

1632225 is a wasteful number, since it uses less digits than its factorization.

1632225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3129 (or 3124 counting only the distinct ones).

The product of its digits is 720, while the sum is 21.

The square root of 1632225 is about 1277.5856135696. The cubic root of 1632225 is about 117.7407167189.

Adding to 1632225 its reverse (5222361), we get a palindrome (6854586).

The spelling of 1632225 in words is "one million, six hundred thirty-two thousand, two hundred twenty-five".