32052721 has 2 divisors, whose sum is σ = 32052722. Its totient is φ = 32052720.

The previous prime is 32052719. The next prime is 32052751. The reversal of 32052721 is 12725023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28740321 + 3312400 = 5361^2 + 1820^2 .

It is an emirp because it is prime and its reverse (12725023) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 32052721 - 2¹ = 32052719 is a prime.

Together with 32052719, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 32052692 and 32052701.

It is not a weakly prime, because it can be changed into another prime (32052751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16026360 + 16026361.

It is an arithmetic number, because the mean of its divisors is an integer number (16026361).

Almost surely, 2^32052721 is an apocalyptic number.

It is an amenable number.

32052721 is a deficient number, since it is larger than the sum of its proper divisors (1).

32052721 is an equidigital number, since it uses as much as digits as its factorization.

32052721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 32052721 is about 5661.5122538064. The cubic root of 32052721 is about 317.6544675866.

Adding to 32052721 its reverse (12725023), we get a palindrome (44777744).

The spelling of 32052721 in words is "thirty-two million, fifty-two thousand, seven hundred twenty-one".