50561 has 8 divisors (see below), whose sum is σ = 59904. Its totient is φ = 41760.

The previous prime is 50551. The next prime is 50581. The reversal of 50561 is 16505.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 50561 - 2⁶ = 50497 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101 + ... + 333.

It is an arithmetic number, because the mean of its divisors is an integer number (7488).

2⁵⁰⁵⁶¹ is an apocalyptic number.

It is an amenable number.

50561 is a deficient number, since it is larger than the sum of its proper divisors (9343).

50561 is a wasteful number, since it uses less digits than its factorization.

50561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 50561 is about 224.8577328001. The cubic root of 50561 is about 36.9775856451.

The spelling of 50561 in words is "fifty thousand, five hundred sixty-one".