54198569 has 2 divisors, whose sum is σ = 54198570. Its totient is φ = 54198568.

The previous prime is 54198563. The next prime is 54198587. The reversal of 54198569 is 96589145.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51308569 + 2890000 = 7163^2 + 1700^2 .

It is a cyclic number.

It is not a de Polignac number, because 54198569 - 2⁴ = 54198553 is a prime.

It is a super-3 number, since 3×54198569³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (54198563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27099284 + 27099285.

It is an arithmetic number, because the mean of its divisors is an integer number (27099285).

Almost surely, 2^54198569 is an apocalyptic number.

It is an amenable number.

54198569 is a deficient number, since it is larger than the sum of its proper divisors (1).

54198569 is an equidigital number, since it uses as much as digits as its factorization.

54198569 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 388800, while the sum is 47.

The square root of 54198569 is about 7361.9677396740. The cubic root of 54198569 is about 378.4390468797.

The spelling of 54198569 in words is "fifty-four million, one hundred ninety-eight thousand, five hundred sixty-nine".