50778205382249 has 4 divisors (see below), whose sum is σ = 50862977011200. Its totient is φ = 50693433753300.

The previous prime is 50778205382189. The next prime is 50778205382269. The reversal of 50778205382249 is 94228350287705.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 50778205382249 - 2²⁴ = 50778188605033 is a prime.

It is a super-2 number, since 2×50778205382249² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50778205382191 and 50778205382200.

It is not an unprimeable number, because it can be changed into a prime (50778205382269) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42385813577 + ... + 42385814774.

It is an arithmetic number, because the mean of its divisors is an integer number (12715744252800).

Almost surely, 2^{50778205382249} is an apocalyptic number.

It is an amenable number.

50778205382249 is a deficient number, since it is larger than the sum of its proper divisors (84771628951).

50778205382249 is an equidigital number, since it uses as much as digits as its factorization.

50778205382249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84771628950.

The product of its (nonzero) digits is 67737600, while the sum is 62.

The spelling of 50778205382249 in words is "fifty trillion, seven hundred seventy-eight billion, two hundred five million, three hundred eighty-two thousand, two hundred forty-nine".