50990011129 has 2 divisors, whose sum is σ = 50990011130. Its totient is φ = 50990011128.

The previous prime is 50990011027. The next prime is 50990011147. The reversal of 50990011129 is 92111009905.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49441746025 + 1548265104 = 222355^2 + 39348^2 .

It is a cyclic number.

It is not a de Polignac number, because 50990011129 - 2⁷ = 50990011001 is a prime.

It is not a weakly prime, because it can be changed into another prime (50990011229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25495005564 + 25495005565.

It is an arithmetic number, because the mean of its divisors is an integer number (25495005565).

Almost surely, 2^50990011129 is an apocalyptic number.

It is an amenable number.

50990011129 is a deficient number, since it is larger than the sum of its proper divisors (1).

50990011129 is an equidigital number, since it uses as much as digits as its factorization.

50990011129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7290, while the sum is 37.

The spelling of 50990011129 in words is "fifty billion, nine hundred ninety million, eleven thousand, one hundred twenty-nine".