54565517 has 2 divisors, whose sum is σ = 54565518. Its totient is φ = 54565516.

The previous prime is 54565493. The next prime is 54565541. The reversal of 54565517 is 71556545.

It is a balanced prime because it is at equal distance from previous prime (54565493) and next prime (54565541).

It can be written as a sum of positive squares in only one way, i.e., 34035556 + 20529961 = 5834^2 + 4531^2 .

It is a cyclic number.

It is not a de Polignac number, because 54565517 - 2¹⁰ = 54564493 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 (54565817) 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, 27282758 + 27282759.

It is an arithmetic number, because the mean of its divisors is an integer number (27282759).

Almost surely, 2^54565517 is an apocalyptic number.

It is an amenable number.

54565517 is a deficient number, since it is larger than the sum of its proper divisors (1).

54565517 is an equidigital number, since it uses as much as digits as its factorization.

54565517 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 105000, while the sum is 38.

The square root of 54565517 is about 7386.8475684828. The cubic root of 54565517 is about 379.2911925461.

The spelling of 54565517 in words is "fifty-four million, five hundred sixty-five thousand, five hundred seventeen".