54705517 has 2 divisors, whose sum is σ = 54705518. Its totient is φ = 54705516.

The previous prime is 54705479. The next prime is 54705527. The reversal of 54705517 is 71550745.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54257956 + 447561 = 7366^2 + 669^2 .

It is a cyclic number.

It is not a de Polignac number, because 54705517 - 2¹⁵ = 54672749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54705527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27352758 + 27352759.

It is an arithmetic number, because the mean of its divisors is an integer number (27352759).

Almost surely, 2^54705517 is an apocalyptic number.

It is an amenable number.

54705517 is a deficient number, since it is larger than the sum of its proper divisors (1).

54705517 is an equidigital number, since it uses as much as digits as its factorization.

54705517 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24500, while the sum is 34.

The square root of 54705517 is about 7396.3178000949. The cubic root of 54705517 is about 379.6153008875.

The spelling of 54705517 in words is "fifty-four million, seven hundred five thousand, five hundred seventeen".