50099397077 has 2 divisors, whose sum is σ = 50099397078. Its totient is φ = 50099397076.

The previous prime is 50099397059. The next prime is 50099397091. The reversal of 50099397077 is 77079399005.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46982296516 + 3117100561 = 216754^2 + 55831^2 .

It is a cyclic number.

It is not a de Polignac number, because 50099397077 - 2¹⁴ = 50099380693 is a prime.

It is a super-2 number, since 2×50099397077² (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 (50099397037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25049698538 + 25049698539.

It is an arithmetic number, because the mean of its divisors is an integer number (25049698539).

Almost surely, 2^50099397077 is an apocalyptic number.

It is an amenable number.

50099397077 is a deficient number, since it is larger than the sum of its proper divisors (1).

50099397077 is an equidigital number, since it uses as much as digits as its factorization.

50099397077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3750705, while the sum is 56.

The spelling of 50099397077 in words is "fifty billion, ninety-nine million, three hundred ninety-seven thousand, seventy-seven".