64550318 has 32 divisors (see below), whose sum is σ = 114524928. Its totient is φ = 26712000.

The previous prime is 64550281. The next prime is 64550327. The reversal of 64550318 is 81305546.

It is a happy number.

It is a super-2 number, since 2×64550318² = 8333487107802248, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60893 + ... + 61943.

It is an arithmetic number, because the mean of its divisors is an integer number (3578904).

Almost surely, 2^64550318 is an apocalyptic number.

64550318 is a deficient number, since it is larger than the sum of its proper divisors (49974610).

64550318 is a wasteful number, since it uses less digits than its factorization.

64550318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1208.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 64550318 is about 8034.3212532236. The cubic root of 64550318 is about 401.1432253102.

The spelling of 64550318 in words is "sixty-four million, five hundred fifty thousand, three hundred eighteen".