64551017 has 2 divisors, whose sum is σ = 64551018. Its totient is φ = 64551016.

The previous prime is 64551001. The next prime is 64551029. The reversal of 64551017 is 71015546.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63425296 + 1125721 = 7964^2 + 1061^2 .

It is a cyclic number.

It is not a de Polignac number, because 64551017 - 2⁴ = 64551001 is a prime.

It is not a weakly prime, because it can be changed into another prime (64541017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32275508 + 32275509.

It is an arithmetic number, because the mean of its divisors is an integer number (32275509).

Almost surely, 2^64551017 is an apocalyptic number.

It is an amenable number.

64551017 is a deficient number, since it is larger than the sum of its proper divisors (1).

64551017 is an equidigital number, since it uses as much as digits as its factorization.

64551017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 64551017 is about 8034.3647539802. The cubic root of 64551017 is about 401.1446732665.

The spelling of 64551017 in words is "sixty-four million, five hundred fifty-one thousand, seventeen".