32531597257 has 2 divisors, whose sum is σ = 32531597258. Its totient is φ = 32531597256.

The previous prime is 32531597249. The next prime is 32531597269. The reversal of 32531597257 is 75279513523.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16521503296 + 16010093961 = 128536^2 + 126531^2 .

It is a cyclic number.

It is not a de Polignac number, because 32531597257 - 2³ = 32531597249 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 32531597257.

It is not a weakly prime, because it can be changed into another prime (32531597057) 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, 16265798628 + 16265798629.

It is an arithmetic number, because the mean of its divisors is an integer number (16265798629).

Almost surely, 2^32531597257 is an apocalyptic number.

It is an amenable number.

32531597257 is a deficient number, since it is larger than the sum of its proper divisors (1).

32531597257 is an equidigital number, since it uses as much as digits as its factorization.

32531597257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1984500, while the sum is 49.

The spelling of 32531597257 in words is "thirty-two billion, five hundred thirty-one million, five hundred ninety-seven thousand, two hundred fifty-seven".