50278166269 has 2 divisors, whose sum is σ = 50278166270. Its totient is φ = 50278166268.

The previous prime is 50278166243. The next prime is 50278166273. The reversal of 50278166269 is 96266187205.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46079774244 + 4198392025 = 214662^2 + 64795^2 .

It is a cyclic number.

It is not a de Polignac number, because 50278166269 - 2³⁵ = 15918427901 is a prime.

It is a super-2 number, since 2×50278166269² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50278116269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25139083134 + 25139083135.

It is an arithmetic number, because the mean of its divisors is an integer number (25139083135).

Almost surely, 2^50278166269 is an apocalyptic number.

It is an amenable number.

50278166269 is a deficient number, since it is larger than the sum of its proper divisors (1).

50278166269 is an equidigital number, since it uses as much as digits as its factorization.

50278166269 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2177280, while the sum is 52.

The spelling of 50278166269 in words is "fifty billion, two hundred seventy-eight million, one hundred sixty-six thousand, two hundred sixty-nine".