56250220 has 24 divisors (see below), whose sum is σ = 127212624. Its totient is φ = 20769216.

The previous prime is 56250217. The next prime is 56250253. The reversal of 56250220 is 2205265.

It is a junction number, because it is equal to n+sod(n) for n = 56250191 and 56250200.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107914 + ... + 108433.

It is an arithmetic number, because the mean of its divisors is an integer number (5300526).

Almost surely, 2^56250220 is an apocalyptic number.

It is an amenable number.

56250220 is an abundant number, since it is smaller than the sum of its proper divisors (70962404).

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

56250220 is a wasteful number, since it uses less digits than its factorization.

56250220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216369 (or 216367 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 56250220 is about 7500.0146666523. The cubic root of 56250220 is about 383.1552157163.

Adding to 56250220 its reverse (2205265), we get a palindrome (58455485).

The spelling of 56250220 in words is "fifty-six million, two hundred fifty thousand, two hundred twenty".