50090220 has 36 divisors (see below), whose sum is σ = 151940880. Its totient is φ = 13357344.

The previous prime is 50090219. The next prime is 50090237. The reversal of 50090220 is 2209005.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 50090193 and 50090202.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 138960 + ... + 139319.

It is an arithmetic number, because the mean of its divisors is an integer number (4220580).

Almost surely, 2^50090220 is an apocalyptic number.

It is an amenable number.

50090220 is an abundant number, since it is smaller than the sum of its proper divisors (101850660).

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

50090220 is a wasteful number, since it uses less digits than its factorization.

50090220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278294 (or 278289 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 50090220 is about 7077.4444540385. Note that the first 4 decimals coincide. The cubic root of 50090220 is about 368.6245989377.

Adding to 50090220 its reverse (2209005), we get a palindrome (52299225).

The spelling of 50090220 in words is "fifty million, ninety thousand, two hundred twenty".