49775857 has 2 divisors, whose sum is σ = 49775858. Its totient is φ = 49775856.

The previous prime is 49775849. The next prime is 49775917. The reversal of 49775857 is 75857794.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46226401 + 3549456 = 6799^2 + 1884^2 .

It is a cyclic number.

It is not a de Polignac number, because 49775857 - 2³ = 49775849 is a prime.

It is not a weakly prime, because it can be changed into another prime (49775807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24887928 + 24887929.

It is an arithmetic number, because the mean of its divisors is an integer number (24887929).

Almost surely, 2^49775857 is an apocalyptic number.

It is an amenable number.

49775857 is a deficient number, since it is larger than the sum of its proper divisors (1).

49775857 is an equidigital number, since it uses as much as digits as its factorization.

49775857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2469600, while the sum is 52.

The square root of 49775857 is about 7055.2007058623. The cubic root of 49775857 is about 367.8518252897.

The spelling of 49775857 in words is "forty-nine million, seven hundred seventy-five thousand, eight hundred fifty-seven".