49589809 has 2 divisors, whose sum is σ = 49589810. Its totient is φ = 49589808.

The previous prime is 49589803. The next prime is 49589831. The reversal of 49589809 is 90898594.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45968400 + 3621409 = 6780^2 + 1903^2 .

It is a cyclic number.

It is not a de Polignac number, because 49589809 - 2¹⁵ = 49557041 is a prime.

It is not a weakly prime, because it can be changed into another prime (49589803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24794904 + 24794905.

It is an arithmetic number, because the mean of its divisors is an integer number (24794905).

Almost surely, 2^49589809 is an apocalyptic number.

It is an amenable number.

49589809 is a deficient number, since it is larger than the sum of its proper divisors (1).

49589809 is an equidigital number, since it uses as much as digits as its factorization.

49589809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 933120, while the sum is 52.

The square root of 49589809 is about 7042.0031951143. The cubic root of 49589809 is about 367.3929445833.

The spelling of 49589809 in words is "forty-nine million, five hundred eighty-nine thousand, eight hundred nine".