32272561 has 2 divisors, whose sum is σ = 32272562. Its totient is φ = 32272560.

The previous prime is 32272549. The next prime is 32272567. The reversal of 32272561 is 16527223.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26584336 + 5688225 = 5156^2 + 2385^2 .

It is a cyclic number.

It is not a de Polignac number, because 32272561 - 2¹⁹ = 31748273 is a prime.

It is not a weakly prime, because it can be changed into another prime (32272567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16136280 + 16136281.

It is an arithmetic number, because the mean of its divisors is an integer number (16136281).

Almost surely, 2^32272561 is an apocalyptic number.

It is an amenable number.

32272561 is a deficient number, since it is larger than the sum of its proper divisors (1).

32272561 is an equidigital number, since it uses as much as digits as its factorization.

32272561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 28.

The square root of 32272561 is about 5680.8943838096. The cubic root of 32272561 is about 318.3790457884.

Adding to 32272561 its reverse (16527223), we get a palindrome (48799784).

The spelling of 32272561 in words is "thirty-two million, two hundred seventy-two thousand, five hundred sixty-one".