50000555499977 has 2 divisors, whose sum is σ = 50000555499978. Its totient is φ = 50000555499976.

The previous prime is 50000555499899. The next prime is 50000555500013. The reversal of 50000555499977 is 77999455500005.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48132916208521 + 1867639291456 = 6937789^2 + 1366616^2 .

It is a cyclic number.

It is not a de Polignac number, because 50000555499977 - 2¹⁸ = 50000555237833 is a prime.

It is not a weakly prime, because it can be changed into another prime (50000555499077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25000277749988 + 25000277749989.

It is an arithmetic number, because the mean of its divisors is an integer number (25000277749989).

Almost surely, 2^{50000555499977} is an apocalyptic number.

It is an amenable number.

50000555499977 is a deficient number, since it is larger than the sum of its proper divisors (1).

50000555499977 is an equidigital number, since it uses as much as digits as its factorization.

50000555499977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 89302500, while the sum is 65.

The spelling of 50000555499977 in words is "fifty trillion, five hundred fifty-five million, four hundred ninety-nine thousand, nine hundred seventy-seven".