50550561 has 24 divisors (see below), whose sum is σ = 76096384. Its totient is φ = 33534000.

The previous prime is 50550559. The next prime is 50550587. The reversal of 50550561 is 16505505.

50550561 is a `hidden beast` number, since 50 + 5 + 50 + 561 = 666.

It is not a de Polignac number, because 50550561 - 2¹ = 50550559 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50550541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66936 + ... + 67686.

Almost surely, 2^50550561 is an apocalyptic number.

It is an amenable number.

50550561 is a deficient number, since it is larger than the sum of its proper divisors (25545823).

50550561 is an equidigital number, since it uses as much as digits as its factorization.

50550561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1043 (or 1031 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 27.

The square root of 50550561 is about 7109.8917713282. The cubic root of 50550561 is about 369.7504062962.

The spelling of 50550561 in words is "fifty million, five hundred fifty thousand, five hundred sixty-one".