75255222251257 has 2 divisors, whose sum is σ = 75255222251258. Its totient is φ = 75255222251256.

The previous prime is 75255222251243. The next prime is 75255222251303. The reversal of 75255222251257 is 75215222255257.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57538733114041 + 17716489137216 = 7585429^2 + 4209096^2 .

It is a cyclic number.

It is not a de Polignac number, because 75255222251257 - 2³⁹ = 74705466437369 is a prime.

It is not a weakly prime, because it can be changed into another prime (75255222254257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37627611125628 + 37627611125629.

It is an arithmetic number, because the mean of its divisors is an integer number (37627611125629).

Almost surely, 2^{75255222251257} is an apocalyptic number.

It is an amenable number.

75255222251257 is a deficient number, since it is larger than the sum of its proper divisors (1).

75255222251257 is an equidigital number, since it uses as much as digits as its factorization.

75255222251257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9800000, while the sum is 52.

It can be divided in two parts, 7525522 and 2251257, that added together give a palindrome (9776779).

The spelling of 75255222251257 in words is "seventy-five trillion, two hundred fifty-five billion, two hundred twenty-two million, two hundred fifty-one thousand, two hundred fifty-seven".