48642281 has 2 divisors, whose sum is σ = 48642282. Its totient is φ = 48642280.

The previous prime is 48642271. The next prime is 48642301. The reversal of 48642281 is 18224684.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25755625 + 22886656 = 5075^2 + 4784^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-48642281 is a prime.

It is a super-2 number, since 2×48642281² = 4732143001765922, which contains 22 as substring.

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 (48642221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24321140 + 24321141.

It is an arithmetic number, because the mean of its divisors is an integer number (24321141).

Almost surely, 2^48642281 is an apocalyptic number.

It is an amenable number.

48642281 is a deficient number, since it is larger than the sum of its proper divisors (1).

48642281 is an equidigital number, since it uses as much as digits as its factorization.

48642281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24576, while the sum is 35.

The square root of 48642281 is about 6974.4018381507. The cubic root of 48642281 is about 365.0379168716.

The spelling of 48642281 in words is "forty-eight million, six hundred forty-two thousand, two hundred eighty-one".