50378288249 has 2 divisors, whose sum is σ = 50378288250. Its totient is φ = 50378288248.

The previous prime is 50378288243. The next prime is 50378288281. The reversal of 50378288249 is 94288287305.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43861762624 + 6516525625 = 209432^2 + 80725^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50378288249 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 50378288194 and 50378288203.

It is not a weakly prime, because it can be changed into another prime (50378288243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25189144124 + 25189144125.

It is an arithmetic number, because the mean of its divisors is an integer number (25189144125).

Almost surely, 2^50378288249 is an apocalyptic number.

It is an amenable number.

50378288249 is a deficient number, since it is larger than the sum of its proper divisors (1).

50378288249 is an equidigital number, since it uses as much as digits as its factorization.

50378288249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7741440, while the sum is 56.

The spelling of 50378288249 in words is "fifty billion, three hundred seventy-eight million, two hundred eighty-eight thousand, two hundred forty-nine".