548075989 has 2 divisors, whose sum is σ = 548075990. Its totient is φ = 548075988.

The previous prime is 548075981. The next prime is 548075999. The reversal of 548075989 is 989570845.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 327791025 + 220284964 = 18105^2 + 14842^2 .

It is a cyclic number.

It is not a de Polignac number, because 548075989 - 2³ = 548075981 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (548075981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274037994 + 274037995.

It is an arithmetic number, because the mean of its divisors is an integer number (274037995).

Almost surely, 2^548075989 is an apocalyptic number.

It is an amenable number.

548075989 is a deficient number, since it is larger than the sum of its proper divisors (1).

548075989 is an equidigital number, since it uses as much as digits as its factorization.

548075989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3628800, while the sum is 55.

The square root of 548075989 is about 23411.0228097792. The cubic root of 548075989 is about 818.3647706693.

The spelling of 548075989 in words is "five hundred forty-eight million, seventy-five thousand, nine hundred eighty-nine".