46656509 has 2 divisors, whose sum is σ = 46656510. Its totient is φ = 46656508.

The previous prime is 46656503. The next prime is 46656523. The reversal of 46656509 is 90565664.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43850884 + 2805625 = 6622^2 + 1675^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-46656509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (46656503) 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, 23328254 + 23328255.

It is an arithmetic number, because the mean of its divisors is an integer number (23328255).

Almost surely, 2^46656509 is an apocalyptic number.

It is an amenable number.

46656509 is a deficient number, since it is larger than the sum of its proper divisors (1).

46656509 is an equidigital number, since it uses as much as digits as its factorization.

46656509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 194400, while the sum is 41.

The square root of 46656509 is about 6830.5570051058. The cubic root of 46656509 is about 360.0013091516.

The spelling of 46656509 in words is "forty-six million, six hundred fifty-six thousand, five hundred nine".