50564 has 6 divisors (see below), whose sum is σ = 88494. Its totient is φ = 25280.

The previous prime is 50551. The next prime is 50581. The reversal of 50564 is 46505.

50564 = T₁₅₇ + T₁₅₈ + ... + T₁₆₀.

It can be written as a sum of positive squares in only one way, i.e., 25600 + 24964 = 160^2 + 158^2 .

It is a nialpdrome in base 9.

It is an unprimeable number.

50564 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6317 + ... + 6324.

It is an arithmetic number, because the mean of its divisors is an integer number (14749).

2⁵⁰⁵⁶⁴ is an apocalyptic number.

It is an amenable number.

50564 is a deficient number, since it is larger than the sum of its proper divisors (37930).

50564 is a wasteful number, since it uses less digits than its factorization.

50564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12645 (or 12643 counting only the distinct ones).

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

The square root of 50564 is about 224.8644035858. The cubic root of 50564 is about 36.9783169767.

The spelling of 50564 in words is "fifty thousand, five hundred sixty-four".