50115220 has 24 divisors (see below), whose sum is σ = 108638208. Its totient is φ = 19399200.

The previous prime is 50115211. The next prime is 50115223. The reversal of 50115220 is 2251105.

It is a junction number, because it is equal to n+sod(n) for n = 50115194 and 50115203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50115223) 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, 39796 + ... + 41035.

It is an arithmetic number, because the mean of its divisors is an integer number (4526592).

Almost surely, 2^50115220 is an apocalyptic number.

It is an amenable number.

50115220 is an abundant number, since it is smaller than the sum of its proper divisors (58522988).

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

50115220 is a wasteful number, since it uses less digits than its factorization.

50115220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80871 (or 80869 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 50115220 is about 7079.2104079481. The cubic root of 50115220 is about 368.6859155129.

Adding to 50115220 its reverse (2251105), we get a palindrome (52366325).

The spelling of 50115220 in words is "fifty million, one hundred fifteen thousand, two hundred twenty".