48449281 has 2 divisors, whose sum is σ = 48449282. Its totient is φ = 48449280.

The previous prime is 48449273. The next prime is 48449299. The reversal of 48449281 is 18294484.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46444225 + 2005056 = 6815^2 + 1416^2 .

It is a cyclic number.

It is not a de Polignac number, because 48449281 - 2³ = 48449273 is a prime.

It is a super-2 number, since 2×48449281² = 4694665658833922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (48449231) 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, 24224640 + 24224641.

It is an arithmetic number, because the mean of its divisors is an integer number (24224641).

Almost surely, 2^48449281 is an apocalyptic number.

It is an amenable number.

48449281 is a deficient number, since it is larger than the sum of its proper divisors (1).

48449281 is an equidigital number, since it uses as much as digits as its factorization.

48449281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 73728, while the sum is 40.

The square root of 48449281 is about 6960.5517741053. The cubic root of 48449281 is about 364.5544848909.

The spelling of 48449281 in words is "forty-eight million, four hundred forty-nine thousand, two hundred eighty-one".