50555220 has 24 divisors (see below), whose sum is σ = 141554784. Its totient is φ = 13481376.

The previous prime is 50555191. The next prime is 50555231. The reversal of 50555220 is 2255505.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 421234 + ... + 421353.

It is an arithmetic number, because the mean of its divisors is an integer number (5898116).

Almost surely, 2^50555220 is an apocalyptic number.

It is an amenable number.

50555220 is an abundant number, since it is smaller than the sum of its proper divisors (90999564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50555220 is a wasteful number, since it uses less digits than its factorization.

50555220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842599 (or 842597 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 24.

The square root of 50555220 is about 7110.2194058974. The cubic root of 50555220 is about 369.7617653144.

The spelling of 50555220 in words is "fifty million, five hundred fifty-five thousand, two hundred twenty".