54475409 has 2 divisors, whose sum is σ = 54475410. Its totient is φ = 54475408.

The previous prime is 54475373. The next prime is 54475417. The reversal of 54475409 is 90457445.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54169600 + 305809 = 7360^2 + 553^2 .

It is a cyclic number.

It is not a de Polignac number, because 54475409 - 2²⁰ = 53426833 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (54475609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27237704 + 27237705.

It is an arithmetic number, because the mean of its divisors is an integer number (27237705).

Almost surely, 2^54475409 is an apocalyptic number.

It is an amenable number.

54475409 is a deficient number, since it is larger than the sum of its proper divisors (1).

54475409 is an equidigital number, since it uses as much as digits as its factorization.

54475409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 54475409 is about 7380.7458295216. The cubic root of 54475409 is about 379.0822938190.

The spelling of 54475409 in words is "fifty-four million, four hundred seventy-five thousand, four hundred nine".