50553101205781 has 2 divisors, whose sum is σ = 50553101205782. Its totient is φ = 50553101205780.

The previous prime is 50553101205751. The next prime is 50553101205809. The reversal of 50553101205781 is 18750210135505.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29279245660900 + 21273855544881 = 5411030^2 + 4612359^2 .

It is a cyclic number.

It is not a de Polignac number, because 50553101205781 - 2¹⁵ = 50553101173013 is a prime.

It is a super-2 number, since 2×50553101205781² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50553101205751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25276550602890 + 25276550602891.

It is an arithmetic number, because the mean of its divisors is an integer number (25276550602891).

Almost surely, 2^{50553101205781} is an apocalyptic number.

It is an amenable number.

50553101205781 is a deficient number, since it is larger than the sum of its proper divisors (1).

50553101205781 is an equidigital number, since it uses as much as digits as its factorization.

50553101205781 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 210000, while the sum is 43.

The spelling of 50553101205781 in words is "fifty trillion, five hundred fifty-three billion, one hundred one million, two hundred five thousand, seven hundred eighty-one".