32220402257 has 2 divisors, whose sum is σ = 32220402258. Its totient is φ = 32220402256.

The previous prime is 32220402223. The next prime is 32220402317. The reversal of 32220402257 is 75220402223.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32169650881 + 50751376 = 179359^2 + 7124^2 .

It is an emirp because it is prime and its reverse (75220402223) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32220402257 is a prime.

It is not a weakly prime, because it can be changed into another prime (32220402757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16110201128 + 16110201129.

It is an arithmetic number, because the mean of its divisors is an integer number (16110201129).

Almost surely, 2^32220402257 is an apocalyptic number.

It is an amenable number.

32220402257 is a deficient number, since it is larger than the sum of its proper divisors (1).

32220402257 is an equidigital number, since it uses as much as digits as its factorization.

32220402257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13440, while the sum is 29.

The spelling of 32220402257 in words is "thirty-two billion, two hundred twenty million, four hundred two thousand, two hundred fifty-seven".