48180809 has 2 divisors, whose sum is σ = 48180810. Its totient is φ = 48180808.

The previous prime is 48180799. The next prime is 48180817. The reversal of 48180809 is 90808184.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40998409 + 7182400 = 6403^2 + 2680^2 .

It is a cyclic number.

It is not a de Polignac number, because 48180809 - 2⁴ = 48180793 is a prime.

It is not a weakly prime, because it can be changed into another prime (48180829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24090404 + 24090405.

It is an arithmetic number, because the mean of its divisors is an integer number (24090405).

Almost surely, 2^48180809 is an apocalyptic number.

It is an amenable number.

48180809 is a deficient number, since it is larger than the sum of its proper divisors (1).

48180809 is an equidigital number, since it uses as much as digits as its factorization.

48180809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18432, while the sum is 38.

The square root of 48180809 is about 6941.2397307686. The cubic root of 48180809 is about 363.8798686816.

The spelling of 48180809 in words is "forty-eight million, one hundred eighty thousand, eight hundred nine".