1533225 has 12 divisors (see below), whose sum is σ = 2535056. Its totient is φ = 817680.

The previous prime is 1533221. The next prime is 1533239. The reversal of 1533225 is 5223351.

It is not a de Polignac number, because 1533225 - 2² = 1533221 is a prime.

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1533221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10147 + ... + 10296.

2^1533225 is an apocalyptic number.

1533225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1533225 is a deficient number, since it is larger than the sum of its proper divisors (1001831).

1533225 is a wasteful number, since it uses less digits than its factorization.

1533225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20456 (or 20451 counting only the distinct ones).

The product of its digits is 900, while the sum is 21.

The square root of 1533225 is about 1238.2346304316. The cubic root of 1533225 is about 115.3104403610.

Adding to 1533225 its reverse (5223351), we get a palindrome (6756576).

The spelling of 1533225 in words is "one million, five hundred thirty-three thousand, two hundred twenty-five".