42255452177 has 2 divisors, whose sum is σ = 42255452178. Its totient is φ = 42255452176.

The previous prime is 42255452167. The next prime is 42255452257. The reversal of 42255452177 is 77125455224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39235290241 + 3020161936 = 198079^2 + 54956^2 .

It is a cyclic number.

It is not a de Polignac number, because 42255452177 - 2³⁴ = 25075582993 is a prime.

It is not a weakly prime, because it can be changed into another prime (42255452167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21127726088 + 21127726089.

It is an arithmetic number, because the mean of its divisors is an integer number (21127726089).

Almost surely, 2^42255452177 is an apocalyptic number.

It is an amenable number.

42255452177 is a deficient number, since it is larger than the sum of its proper divisors (1).

42255452177 is an equidigital number, since it uses as much as digits as its factorization.

42255452177 is an evil number, because the sum of its binary digits is even.

The product of its digits is 784000, while the sum is 44.

The spelling of 42255452177 in words is "forty-two billion, two hundred fifty-five million, four hundred fifty-two thousand, one hundred seventy-seven".