32172565057 has 2 divisors, whose sum is σ = 32172565058. Its totient is φ = 32172565056.

The previous prime is 32172565021. The next prime is 32172565063. The reversal of 32172565057 is 75056527123.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31985176336 + 187388721 = 178844^2 + 13689^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32172565057 is a prime.

It is not a weakly prime, because it can be changed into another prime (32172565097) by changing a digit.

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 as a sum of consecutive naturals, namely, 16086282528 + 16086282529.

It is an arithmetic number, because the mean of its divisors is an integer number (16086282529).

Almost surely, 2^32172565057 is an apocalyptic number.

It is an amenable number.

32172565057 is a deficient number, since it is larger than the sum of its proper divisors (1).

32172565057 is an equidigital number, since it uses as much as digits as its factorization.

32172565057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 441000, while the sum is 43.

The spelling of 32172565057 in words is "thirty-two billion, one hundred seventy-two million, five hundred sixty-five thousand, fifty-seven".