49925009 has 2 divisors, whose sum is σ = 49925010. Its totient is φ = 49925008.

The previous prime is 49924997. The next prime is 49925041. The reversal of 49925009 is 90052994.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46036225 + 3888784 = 6785^2 + 1972^2 .

It is a cyclic number.

It is not a de Polignac number, because 49925009 - 2⁸ = 49924753 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (49925059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24962504 + 24962505.

It is an arithmetic number, because the mean of its divisors is an integer number (24962505).

Almost surely, 2^49925009 is an apocalyptic number.

It is an amenable number.

49925009 is a deficient number, since it is larger than the sum of its proper divisors (1).

49925009 is an equidigital number, since it uses as much as digits as its factorization.

49925009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 49925009 is about 7065.7631576497. The cubic root of 49925009 is about 368.2188782378.

It can be divided in two parts, 4992 and 5009, that added together give a palindrome (10001).

The spelling of 49925009 in words is "forty-nine million, nine hundred twenty-five thousand, nine".