54619109 has 2 divisors, whose sum is σ = 54619110. Its totient is φ = 54619108.

The previous prime is 54619069. The next prime is 54619121. The reversal of 54619109 is 90191645.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54390625 + 228484 = 7375^2 + 478^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54619109 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54619199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27309554 + 27309555.

It is an arithmetic number, because the mean of its divisors is an integer number (27309555).

Almost surely, 2^54619109 is an apocalyptic number.

It is an amenable number.

54619109 is a deficient number, since it is larger than the sum of its proper divisors (1).

54619109 is an equidigital number, since it uses as much as digits as its factorization.

54619109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 54619109 is about 7390.4742067069. The cubic root of 54619109 is about 379.4153266365.

The spelling of 54619109 in words is "fifty-four million, six hundred nineteen thousand, one hundred nine".