64550 has 12 divisors (see below), whose sum is σ = 120156. Its totient is φ = 25800.

The previous prime is 64513. The next prime is 64553. The reversal of 64550 is 5546.

64550 = T₅₉ + T₆₀ + ... + T₈₃.

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64553) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 596 + ... + 695.

It is an arithmetic number, because the mean of its divisors is an integer number (10013).

64550 is a Friedman number, since it can be written as 50*(6^4-5), using all its digits and the basic arithmetic operations.

2⁶⁴⁵⁵⁰ is an apocalyptic number.

64550 is a deficient number, since it is larger than the sum of its proper divisors (55606).

64550 is a wasteful number, since it uses less digits than its factorization.

64550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1303 (or 1298 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 64550 is about 254.0669203183. The cubic root of 64550 is about 40.1142566580.

The spelling of 64550 in words is "sixty-four thousand, five hundred fifty".