49075909 has 2 divisors, whose sum is σ = 49075910. Its totient is φ = 49075908.

The previous prime is 49075891. The next prime is 49075919. The reversal of 49075909 is 90957094.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37173409 + 11902500 = 6097^2 + 3450^2 .

It is a cyclic number.

It is not a de Polignac number, because 49075909 - 2²³ = 40687301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49075919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24537954 + 24537955.

It is an arithmetic number, because the mean of its divisors is an integer number (24537955).

Almost surely, 2^49075909 is an apocalyptic number.

It is an amenable number.

49075909 is a deficient number, since it is larger than the sum of its proper divisors (1).

49075909 is an equidigital number, since it uses as much as digits as its factorization.

49075909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 102060, while the sum is 43.

The square root of 49075909 is about 7005.4199731351. The cubic root of 49075909 is about 366.1194355746.

It can be divided in two parts, 4907 and 5909, that added together give a square (10816 = 104²).

The spelling of 49075909 in words is "forty-nine million, seventy-five thousand, nine hundred nine".