332561 has 2 divisors, whose sum is σ = 332562. Its totient is φ = 332560.

The previous prime is 332513. The next prime is 332567. The reversal of 332561 is 165233.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 330625 + 1936 = 575^2 + 44^2 .

It is an emirp because it is prime and its reverse (165233) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 332561 - 2¹⁰ = 331537 is a prime.

It is a super-2 number, since 2×332561² = 221193637442, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (332567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 166280 + 166281.

It is an arithmetic number, because the mean of its divisors is an integer number (166281).

2³³²⁵⁶¹ is an apocalyptic number.

It is an amenable number.

332561 is a deficient number, since it is larger than the sum of its proper divisors (1).

332561 is an equidigital number, since it uses as much as digits as its factorization.

332561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 540, while the sum is 20.

The square root of 332561 is about 576.6810210160. The cubic root of 332561 is about 69.2825354204.

Adding to 332561 its reverse (165233), we get a palindrome (497794).

The spelling of 332561 in words is "three hundred thirty-two thousand, five hundred sixty-one".