64505659 has 2 divisors, whose sum is σ = 64505660. Its totient is φ = 64505658.

The previous prime is 64505653. The next prime is 64505663. The reversal of 64505659 is 95650546.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64505659 - 2¹¹ = 64503611 is a prime.

It is not a weakly prime, because it can be changed into another prime (64505653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32252829 + 32252830.

It is an arithmetic number, because the mean of its divisors is an integer number (32252830).

Almost surely, 2^64505659 is an apocalyptic number.

64505659 is a deficient number, since it is larger than the sum of its proper divisors (1).

64505659 is an equidigital number, since it uses as much as digits as its factorization.

64505659 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162000, while the sum is 40.

The square root of 64505659 is about 8031.5415083283. The cubic root of 64505659 is about 401.0506939391.

It can be divided in two parts, 6450565 and 9, that multiplied together give a palindrome (58055085).

The spelling of 64505659 in words is "sixty-four million, five hundred five thousand, six hundred fifty-nine".