54345517 has 2 divisors, whose sum is σ = 54345518. Its totient is φ = 54345516.

The previous prime is 54345503. The next prime is 54345521. The reversal of 54345517 is 71554345.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43283241 + 11062276 = 6579^2 + 3326^2 .

It is a cyclic number.

It is not a de Polignac number, because 54345517 - 2¹¹ = 54343469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54345587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27172758 + 27172759.

It is an arithmetic number, because the mean of its divisors is an integer number (27172759).

Almost surely, 2^54345517 is an apocalyptic number.

It is an amenable number.

54345517 is a deficient number, since it is larger than the sum of its proper divisors (1).

54345517 is an equidigital number, since it uses as much as digits as its factorization.

54345517 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42000, while the sum is 34.

The square root of 54345517 is about 7371.9411961844. The cubic root of 54345517 is about 378.7807574858.

The spelling of 54345517 in words is "fifty-four million, three hundred forty-five thousand, five hundred seventeen".