32431225 has 6 divisors (see below), whose sum is σ = 40214750. Its totient is φ = 25944960.

The previous prime is 32431213. The next prime is 32431237. The reversal of 32431225 is 52213423.

It is an interprime number because it is at equal distance from previous prime (32431213) and next prime (32431237).

It can be written as a sum of positive squares in 3 ways, for example, as 6411024 + 26020201 = 2532^2 + 5101^2 .

It is a de Polignac number, because none of the positive numbers 2^k-32431225 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 32431196 and 32431205.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 648600 + ... + 648649.

Almost surely, 2^32431225 is an apocalyptic number.

It is an amenable number.

32431225 is a deficient number, since it is larger than the sum of its proper divisors (7783525).

32431225 is a wasteful number, since it uses less digits than its factorization.

32431225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1297259 (or 1297254 counting only the distinct ones).

The product of its digits is 1440, while the sum is 22.

The square root of 32431225 is about 5694.8419644447. The cubic root of 32431225 is about 318.8999499527.

Adding to 32431225 its reverse (52213423), we get a palindrome (84644648).

The spelling of 32431225 in words is "thirty-two million, four hundred thirty-one thousand, two hundred twenty-five".