548454217 has 2 divisors, whose sum is σ = 548454218. Its totient is φ = 548454216.

The previous prime is 548454211. The next prime is 548454259. The reversal of 548454217 is 712454845.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 548309056 + 145161 = 23416^2 + 381^2 .

It is a cyclic number.

It is not a de Polignac number, because 548454217 - 2¹⁵ = 548421449 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 548454217.

It is not a weakly prime, because it can be changed into another prime (548454211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274227108 + 274227109.

It is an arithmetic number, because the mean of its divisors is an integer number (274227109).

Almost surely, 2^548454217 is an apocalyptic number.

It is an amenable number.

548454217 is a deficient number, since it is larger than the sum of its proper divisors (1).

548454217 is an equidigital number, since it uses as much as digits as its factorization.

548454217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 179200, while the sum is 40.

The square root of 548454217 is about 23419.0994062539. The cubic root of 548454217 is about 818.5529789360.

The spelling of 548454217 in words is "five hundred forty-eight million, four hundred fifty-four thousand, two hundred seventeen".