48221909 has 2 divisors, whose sum is σ = 48221910. Its totient is φ = 48221908.

The previous prime is 48221881. The next prime is 48221941. The reversal of 48221909 is 90912284.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33895684 + 14326225 = 5822^2 + 3785^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-48221909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (48221969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24110954 + 24110955.

It is an arithmetic number, because the mean of its divisors is an integer number (24110955).

Almost surely, 2^48221909 is an apocalyptic number.

It is an amenable number.

48221909 is a deficient number, since it is larger than the sum of its proper divisors (1).

48221909 is an equidigital number, since it uses as much as digits as its factorization.

48221909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 48221909 is about 6944.1996659082. The cubic root of 48221909 is about 363.9833069066.

The spelling of 48221909 in words is "forty-eight million, two hundred twenty-one thousand, nine hundred nine".