49865549 has 2 divisors, whose sum is σ = 49865550. Its totient is φ = 49865548.

The previous prime is 49865537. The next prime is 49865567. The reversal of 49865549 is 94556894.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47955625 + 1909924 = 6925^2 + 1382^2 .

It is a cyclic number.

It is not a de Polignac number, because 49865549 - 2⁴ = 49865533 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 49865497 and 49865506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49865749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24932774 + 24932775.

It is an arithmetic number, because the mean of its divisors is an integer number (24932775).

Almost surely, 2^49865549 is an apocalyptic number.

It is an amenable number.

49865549 is a deficient number, since it is larger than the sum of its proper divisors (1).

49865549 is an equidigital number, since it uses as much as digits as its factorization.

49865549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1555200, while the sum is 50.

The square root of 49865549 is about 7061.5542906643. The cubic root of 49865549 is about 368.0726389573.

The spelling of 49865549 in words is "forty-nine million, eight hundred sixty-five thousand, five hundred forty-nine".