64417501 has 2 divisors, whose sum is σ = 64417502. Its totient is φ = 64417500.

The previous prime is 64417489. The next prime is 64417517. The reversal of 64417501 is 10571446.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55145476 + 9272025 = 7426^2 + 3045^2 .

It is a cyclic number.

It is not a de Polignac number, because 64417501 - 2¹³ = 64409309 is a prime.

It is a super-2 number, since 2×64417501² = 8299228870170002, which contains 22 as substring.

It is equal to p_3808342 and since 64417501 and 3808342 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64417501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64414501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32208750 + 32208751.

It is an arithmetic number, because the mean of its divisors is an integer number (32208751).

Almost surely, 2^64417501 is an apocalyptic number.

It is an amenable number.

64417501 is a deficient number, since it is larger than the sum of its proper divisors (1).

64417501 is an equidigital number, since it uses as much as digits as its factorization.

64417501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 64417501 is about 8026.0513953002. The cubic root of 64417501 is about 400.8679092219.

Adding to 64417501 its reverse (10571446), we get a palindrome (74988947).

It can be divided in two parts, 644 and 17501, that added together give a triangular number (18145 = T₁₉₀).

The spelling of 64417501 in words is "sixty-four million, four hundred seventeen thousand, five hundred one".