61008517 has 2 divisors, whose sum is σ = 61008518. Its totient is φ = 61008516.

The previous prime is 61008503. The next prime is 61008553. The reversal of 61008517 is 71580016.

It is a happy number.

61008517 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39765636 + 21242881 = 6306^2 + 4609^2 .

It is a cyclic number.

It is not a de Polignac number, because 61008517 - 2¹¹ = 61006469 is a prime.

It is equal to p_3618514 and since 61008517 and 3618514 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61008817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30504258 + 30504259.

It is an arithmetic number, because the mean of its divisors is an integer number (30504259).

Almost surely, 2^61008517 is an apocalyptic number.

It is an amenable number.

61008517 is a deficient number, since it is larger than the sum of its proper divisors (1).

61008517 is an equidigital number, since it uses as much as digits as its factorization.

61008517 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 61008517 is about 7810.7949019290. The cubic root of 61008517 is about 393.6680383027.

The spelling of 61008517 in words is "sixty-one million, eight thousand, five hundred seventeen".