50465521261 has 2 divisors, whose sum is σ = 50465521262. Its totient is φ = 50465521260.

The previous prime is 50465521217. The next prime is 50465521279. The reversal of 50465521261 is 16212556405.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44830016361 + 5635504900 = 211731^2 + 75070^2 .

It is a cyclic number.

It is not a de Polignac number, because 50465521261 - 2⁷ = 50465521133 is a prime.

It is a super-2 number, since 2×50465521261² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 50465521261.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50465521201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25232760630 + 25232760631.

It is an arithmetic number, because the mean of its divisors is an integer number (25232760631).

Almost surely, 2^50465521261 is an apocalyptic number.

It is an amenable number.

50465521261 is a deficient number, since it is larger than the sum of its proper divisors (1).

50465521261 is an equidigital number, since it uses as much as digits as its factorization.

50465521261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72000, while the sum is 37.

The spelling of 50465521261 in words is "fifty billion, four hundred sixty-five million, five hundred twenty-one thousand, two hundred sixty-one".