48481409 has 2 divisors, whose sum is σ = 48481410. Its totient is φ = 48481408.

The previous prime is 48481387. The next prime is 48481453. The reversal of 48481409 is 90418484.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26419600 + 22061809 = 5140^2 + 4697^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-48481409 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 (48481469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24240704 + 24240705.

It is an arithmetic number, because the mean of its divisors is an integer number (24240705).

Almost surely, 2^48481409 is an apocalyptic number.

It is an amenable number.

48481409 is a deficient number, since it is larger than the sum of its proper divisors (1).

48481409 is an equidigital number, since it uses as much as digits as its factorization.

48481409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36864, while the sum is 38.

The square root of 48481409 is about 6962.8592546453. The cubic root of 48481409 is about 364.6350489933.

The spelling of 48481409 in words is "forty-eight million, four hundred eighty-one thousand, four hundred nine".