54549000409 has 2 divisors, whose sum is σ = 54549000410. Its totient is φ = 54549000408.

The previous prime is 54549000403. The next prime is 54549000439. The reversal of 54549000409 is 90400094545.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47976331225 + 6572669184 = 219035^2 + 81072^2 .

It is a cyclic number.

It is not a de Polignac number, because 54549000409 - 2¹³ = 54548992217 is a prime.

It is not a weakly prime, because it can be changed into another prime (54549000403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27274500204 + 27274500205.

It is an arithmetic number, because the mean of its divisors is an integer number (27274500205).

Almost surely, 2^54549000409 is an apocalyptic number.

It is an amenable number.

54549000409 is a deficient number, since it is larger than the sum of its proper divisors (1).

54549000409 is an equidigital number, since it uses as much as digits as its factorization.

54549000409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129600, while the sum is 40.

The spelling of 54549000409 in words is "fifty-four billion, five hundred forty-nine million, four hundred nine", and thus it is an aban number.