755245404542557 has 2 divisors, whose sum is σ = 755245404542558. Its totient is φ = 755245404542556.

The previous prime is 755245404542477. The next prime is 755245404542593.

It is a happy number.

755245404542557 is nontrivially palindromic in base 10.

755245404542557 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 585269024367556 + 169976380175001 = 24192334^2 + 13037499^2 .

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 755245404542557 - 2⁷ = 755245404542429 is a prime.

It is a super-2 number, since 2×755245404542557² (a number of 31 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (755245404242557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 377622702271278 + 377622702271279.

It is an arithmetic number, because the mean of its divisors is an integer number (377622702271279).

Almost surely, 2^{755245404542557} is an apocalyptic number.

It is an amenable number.

755245404542557 is a deficient number, since it is larger than the sum of its proper divisors (1).

755245404542557 is an equidigital number, since it uses as much as digits as its factorization.

755245404542557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 784000000, while the sum is 64.

The spelling of 755245404542557 in words is "seven hundred fifty-five trillion, two hundred forty-five billion, four hundred four million, five hundred forty-two thousand, five hundred fifty-seven".