32163325 has 6 divisors (see below), whose sum is σ = 39882554. Its totient is φ = 25730640.

The previous prime is 32163281. The next prime is 32163331. The reversal of 32163325 is 52336123.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 870489 + 31292836 = 933^2 + 5594^2 .

It is not a de Polignac number, because 32163325 - 2⁹ = 32162813 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 1286533 = 32163325 / (3 + 2 + 1 + 6 + 3 + 3 + 2 + 5).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 32163325.

It is a congruent number.

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, 643242 + ... + 643291.

Almost surely, 2^32163325 is an apocalyptic number.

It is an amenable number.

32163325 is a deficient number, since it is larger than the sum of its proper divisors (7719229).

32163325 is a wasteful number, since it uses less digits than its factorization.

32163325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1286543 (or 1286538 counting only the distinct ones).

The product of its digits is 3240, while the sum is 25.

The square root of 32163325 is about 5671.2719031977. The cubic root of 32163325 is about 318.0194238099.

Adding to 32163325 its reverse (52336123), we get a palindrome (84499448).

The spelling of 32163325 in words is "thirty-two million, one hundred sixty-three thousand, three hundred twenty-five".