50161562609 has 2 divisors, whose sum is σ = 50161562610. Its totient is φ = 50161562608.

The previous prime is 50161562603. The next prime is 50161562663. The reversal of 50161562609 is 90626516105.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33584227600 + 16577335009 = 183260^2 + 128753^2 .

It is a cyclic number.

It is not a de Polignac number, because 50161562609 - 2²⁸ = 49893127153 is a prime.

It is not a weakly prime, because it can be changed into another prime (50161562603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25080781304 + 25080781305.

It is an arithmetic number, because the mean of its divisors is an integer number (25080781305).

Almost surely, 2^50161562609 is an apocalyptic number.

It is an amenable number.

50161562609 is a deficient number, since it is larger than the sum of its proper divisors (1).

50161562609 is an equidigital number, since it uses as much as digits as its factorization.

50161562609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 97200, while the sum is 41.

The spelling of 50161562609 in words is "fifty billion, one hundred sixty-one million, five hundred sixty-two thousand, six hundred nine".