50778205404559 has 2 divisors, whose sum is σ = 50778205404560. Its totient is φ = 50778205404558.

The previous prime is 50778205404503. The next prime is 50778205404571. The reversal of 50778205404559 is 95540450287705.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 50778205404559 - 2¹¹ = 50778205402511 is a prime.

It is a super-2 number, since 2×50778205404559² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 50778205404497 and 50778205404506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50778205404359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25389102702279 + 25389102702280.

It is an arithmetic number, because the mean of its divisors is an integer number (25389102702280).

Almost surely, 2^{50778205404559} is an apocalyptic number.

50778205404559 is a deficient number, since it is larger than the sum of its proper divisors (1).

50778205404559 is an equidigital number, since it uses as much as digits as its factorization.

50778205404559 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 70560000, while the sum is 61.

The spelling of 50778205404559 in words is "fifty trillion, seven hundred seventy-eight billion, two hundred five million, four hundred four thousand, five hundred fifty-nine".