54409997 has 2 divisors, whose sum is σ = 54409998. Its totient is φ = 54409996.

The previous prime is 54409969. The next prime is 54410051. The reversal of 54409997 is 79990445.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49477156 + 4932841 = 7034^2 + 2221^2 .

It is a cyclic number.

It is not a de Polignac number, because 54409997 - 2¹⁰ = 54408973 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54409097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27204998 + 27204999.

It is an arithmetic number, because the mean of its divisors is an integer number (27204999).

Almost surely, 2^54409997 is an apocalyptic number.

It is an amenable number.

54409997 is a deficient number, since it is larger than the sum of its proper divisors (1).

54409997 is an equidigital number, since it uses as much as digits as its factorization.

54409997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 408240, while the sum is 47.

The square root of 54409997 is about 7376.3132390104. The cubic root of 54409997 is about 378.9305038463.

The spelling of 54409997 in words is "fifty-four million, four hundred nine thousand, nine hundred ninety-seven".