48818681 has 2 divisors, whose sum is σ = 48818682. Its totient is φ = 48818680.

The previous prime is 48818639. The next prime is 48818683. The reversal of 48818681 is 18681884.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42367081 + 6451600 = 6509^2 + 2540^2 .

It is a cyclic number.

It is not a de Polignac number, because 48818681 - 2¹⁸ = 48556537 is a prime.

It is a super-2 number, since 2×48818681² = 4766527229159522, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 48818683, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (48818683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24409340 + 24409341.

It is an arithmetic number, because the mean of its divisors is an integer number (24409341).

Almost surely, 2^48818681 is an apocalyptic number.

It is an amenable number.

48818681 is a deficient number, since it is larger than the sum of its proper divisors (1).

48818681 is an equidigital number, since it uses as much as digits as its factorization.

48818681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 98304, while the sum is 44.

The square root of 48818681 is about 6987.0366393772. The cubic root of 48818681 is about 365.4786514492.

The spelling of 48818681 in words is "forty-eight million, eight hundred eighteen thousand, six hundred eighty-one".