54543169 has 2 divisors, whose sum is σ = 54543170. Its totient is φ = 54543168.

The previous prime is 54543149. The next prime is 54543227. The reversal of 54543169 is 96134545.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48233025 + 6310144 = 6945^2 + 2512^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54543169 is a prime.

It is a super-2 number, since 2×54543169² = 5949914569125122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (54543109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27271584 + 27271585.

It is an arithmetic number, because the mean of its divisors is an integer number (27271585).

Almost surely, 2^54543169 is an apocalyptic number.

It is an amenable number.

54543169 is a deficient number, since it is larger than the sum of its proper divisors (1).

54543169 is an equidigital number, since it uses as much as digits as its factorization.

54543169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64800, while the sum is 37.

The square root of 54543169 is about 7385.3347249803. The cubic root of 54543169 is about 379.2394043014.

The spelling of 54543169 in words is "fifty-four million, five hundred forty-three thousand, one hundred sixty-nine".