32025781 has 2 divisors, whose sum is σ = 32025782. Its totient is φ = 32025780.

The previous prime is 32025769. The next prime is 32025803. The reversal of 32025781 is 18752023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19280881 + 12744900 = 4391^2 + 3570^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32025781 is a prime.

It is a super-2 number, since 2×32025781² = 2051301297319922, which contains 22 as substring.

It is a Chen prime.

It is a nialpdrome in base 12.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32025281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16012890 + 16012891.

It is an arithmetic number, because the mean of its divisors is an integer number (16012891).

Almost surely, 2^32025781 is an apocalyptic number.

It is an amenable number.

32025781 is a deficient number, since it is larger than the sum of its proper divisors (1).

32025781 is an equidigital number, since it uses as much as digits as its factorization.

32025781 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 32025781 is about 5659.1325306976. The cubic root of 32025781 is about 317.5654474791.

The spelling of 32025781 in words is "thirty-two million, twenty-five thousand, seven hundred eighty-one".