548028491 has 2 divisors, whose sum is σ = 548028492. Its totient is φ = 548028490.

The previous prime is 548028433. The next prime is 548028493. The reversal of 548028491 is 194820845.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-548028491 is a prime.

Together with 548028493, 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 (548028493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274014245 + 274014246.

It is an arithmetic number, because the mean of its divisors is an integer number (274014246).

Almost surely, 2^548028491 is an apocalyptic number.

548028491 is a deficient number, since it is larger than the sum of its proper divisors (1).

548028491 is an equidigital number, since it uses as much as digits as its factorization.

548028491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 92160, while the sum is 41.

The square root of 548028491 is about 23410.0083511305. The cubic root of 548028491 is about 818.3411292926.

The spelling of 548028491 in words is "five hundred forty-eight million, twenty-eight thousand, four hundred ninety-one".