50135657261 has 2 divisors, whose sum is σ = 50135657262. Its totient is φ = 50135657260.

The previous prime is 50135657249. The next prime is 50135657323. The reversal of 50135657261 is 16275653105.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39360179236 + 10775478025 = 198394^2 + 103805^2 .

It is a cyclic number.

It is not a de Polignac number, because 50135657261 - 2¹⁰ = 50135656237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50135657861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25067828630 + 25067828631.

It is an arithmetic number, because the mean of its divisors is an integer number (25067828631).

Almost surely, 2^50135657261 is an apocalyptic number.

It is an amenable number.

50135657261 is a deficient number, since it is larger than the sum of its proper divisors (1).

50135657261 is an equidigital number, since it uses as much as digits as its factorization.

50135657261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 189000, while the sum is 41.

The spelling of 50135657261 in words is "fifty billion, one hundred thirty-five million, six hundred fifty-seven thousand, two hundred sixty-one".