48998561 has 2 divisors, whose sum is σ = 48998562. Its totient is φ = 48998560.

The previous prime is 48998557. The next prime is 48998563. The reversal of 48998561 is 16589984.

It is a happy number.

48998561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33640000 + 15358561 = 5800^2 + 3919^2 .

It is a cyclic number.

It is not a de Polignac number, because 48998561 - 2² = 48998557 is a prime.

Together with 48998563, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (48998563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24499280 + 24499281.

It is an arithmetic number, because the mean of its divisors is an integer number (24499281).

Almost surely, 2^48998561 is an apocalyptic number.

It is an amenable number.

48998561 is a deficient number, since it is larger than the sum of its proper divisors (1).

48998561 is an equidigital number, since it uses as much as digits as its factorization.

48998561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 622080, while the sum is 50.

The square root of 48998561 is about 6999.8972135311. The cubic root of 48998561 is about 365.9269888306.

The spelling of 48998561 in words is "forty-eight million, nine hundred ninety-eight thousand, five hundred sixty-one".