50220128377 has 2 divisors, whose sum is σ = 50220128378. Its totient is φ = 50220128376.

The previous prime is 50220128359. The next prime is 50220128381. The reversal of 50220128377 is 77382102205.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41191137936 + 9028990441 = 202956^2 + 95021^2 .

It is a cyclic number.

It is not a de Polignac number, because 50220128377 - 2³⁵ = 15860390009 is a prime.

It is a super-2 number, since 2×50220128377² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (50220128347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25110064188 + 25110064189.

It is an arithmetic number, because the mean of its divisors is an integer number (25110064189).

Almost surely, 2^50220128377 is an apocalyptic number.

It is an amenable number.

50220128377 is a deficient number, since it is larger than the sum of its proper divisors (1).

50220128377 is an equidigital number, since it uses as much as digits as its factorization.

50220128377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47040, while the sum is 37.

The spelling of 50220128377 in words is "fifty billion, two hundred twenty million, one hundred twenty-eight thousand, three hundred seventy-seven".