548074421 has 2 divisors, whose sum is σ = 548074422. Its totient is φ = 548074420.

The previous prime is 548074357. The next prime is 548074427. The reversal of 548074421 is 124470845.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 472192900 + 75881521 = 21730^2 + 8711^2 .

It is a cyclic number.

It is not a de Polignac number, because 548074421 - 2⁶ = 548074357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (548074427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274037210 + 274037211.

It is an arithmetic number, because the mean of its divisors is an integer number (274037211).

Almost surely, 2^548074421 is an apocalyptic number.

It is an amenable number.

548074421 is a deficient number, since it is larger than the sum of its proper divisors (1).

548074421 is an equidigital number, since it uses as much as digits as its factorization.

548074421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35840, while the sum is 35.

The square root of 548074421 is about 23410.9893212568. The cubic root of 548074421 is about 818.3639902440.

The spelling of 548074421 in words is "five hundred forty-eight million, seventy-four thousand, four hundred twenty-one".