548085091 has 2 divisors, whose sum is σ = 548085092. Its totient is φ = 548085090.

The previous prime is 548085073. The next prime is 548085103. The reversal of 548085091 is 190580845.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 548085091 - 2¹⁷ = 547954019 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (548085011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274042545 + 274042546.

It is an arithmetic number, because the mean of its divisors is an integer number (274042546).

Almost surely, 2^548085091 is an apocalyptic number.

548085091 is a deficient number, since it is larger than the sum of its proper divisors (1).

548085091 is an equidigital number, since it uses as much as digits as its factorization.

548085091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 57600, while the sum is 40.

The square root of 548085091 is about 23411.2172045795. The cubic root of 548085091 is about 818.3693008896.

The spelling of 548085091 in words is "five hundred forty-eight million, eighty-five thousand, ninety-one".