48618281 has 4 divisors (see below), whose sum is σ = 49415364. Its totient is φ = 47821200.

The previous prime is 48618277. The next prime is 48618289. The reversal of 48618281 is 18281684.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8410000 + 40208281 = 2900^2 + 6341^2 .

It is a cyclic number.

It is not a de Polignac number, because 48618281 - 2² = 48618277 is a prime.

It is a super-2 number, since 2×48618281² = 4727474494789922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (48618289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 398450 + ... + 398571.

It is an arithmetic number, because the mean of its divisors is an integer number (12353841).

Almost surely, 2^48618281 is an apocalyptic number.

It is an amenable number.

48618281 is a deficient number, since it is larger than the sum of its proper divisors (797083).

48618281 is an equidigital number, since it uses as much as digits as its factorization.

48618281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 797082.

The product of its digits is 24576, while the sum is 38.

The square root of 48618281 is about 6972.6810482052. The cubic root of 48618281 is about 364.9778706794.

The spelling of 48618281 in words is "forty-eight million, six hundred eighteen thousand, two hundred eighty-one".