50220020 has 12 divisors (see below), whose sum is σ = 105462084. Its totient is φ = 20088000.

The previous prime is 50220013. The next prime is 50220043. The reversal of 50220020 is 2002205.

It can be written as a sum of positive squares in 2 ways, for example, as 35688676 + 14531344 = 5974^2 + 3812^2 .

It is a junction number, because it is equal to n+sod(n) for n = 50219983 and 50220010.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1255481 + ... + 1255520.

It is an arithmetic number, because the mean of its divisors is an integer number (8788507).

Almost surely, 2^50220020 is an apocalyptic number.

It is an amenable number.

50220020 is an abundant number, since it is smaller than the sum of its proper divisors (55242064).

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

50220020 is a wasteful number, since it uses less digits than its factorization.

50220020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2511010 (or 2511008 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 11.

The square root of 50220020 is about 7086.6084977230. The cubic root of 50220020 is about 368.9427329161.

Adding to 50220020 its reverse (2002205), we get a palindrome (52222225).

The spelling of 50220020 in words is "fifty million, two hundred twenty thousand, twenty".