50278025554877 has 2 divisors, whose sum is σ = 50278025554878. Its totient is φ = 50278025554876.

The previous prime is 50278025554843. The next prime is 50278025554903. The reversal of 50278025554877 is 77845552087205.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48986406942841 + 1291618612036 = 6999029^2 + 1136494^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50278025554877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50278025554577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25139012777438 + 25139012777439.

It is an arithmetic number, because the mean of its divisors is an integer number (25139012777439).

Almost surely, 2^{50278025554877} is an apocalyptic number.

It is an amenable number.

50278025554877 is a deficient number, since it is larger than the sum of its proper divisors (1).

50278025554877 is an equidigital number, since it uses as much as digits as its factorization.

50278025554877 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 219520000, while the sum is 65.

The spelling of 50278025554877 in words is "fifty trillion, two hundred seventy-eight billion, twenty-five million, five hundred fifty-four thousand, eight hundred seventy-seven".