49995149 has 2 divisors, whose sum is σ = 49995150. Its totient is φ = 49995148.

The previous prime is 49995131. The next prime is 49995191. The reversal of 49995149 is 94159994.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35880100 + 14115049 = 5990^2 + 3757^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49995149 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 49995097 and 49995106.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49995119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24997574 + 24997575.

It is an arithmetic number, because the mean of its divisors is an integer number (24997575).

Almost surely, 2^49995149 is an apocalyptic number.

It is an amenable number.

49995149 is a deficient number, since it is larger than the sum of its proper divisors (1).

49995149 is an equidigital number, since it uses as much as digits as its factorization.

49995149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 524880, while the sum is 50.

The square root of 49995149 is about 7070.7247860456. The cubic root of 49995149 is about 368.3912353208.

The spelling of 49995149 in words is "forty-nine million, nine hundred ninety-five thousand, one hundred forty-nine".