2550220 has 24 divisors (see below), whose sum is σ = 5471424. Its totient is φ = 998016.

The previous prime is 2550209. The next prime is 2550253. The reversal of 2550220 is 220552.

It is a junction number, because it is equal to n+sod(n) for n = 2550194 and 2550203.

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, 417 + ... + 2296.

It is an arithmetic number, because the mean of its divisors is an integer number (227976).

2^2550220 is an apocalyptic number.

2550220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2550220 is an abundant number, since it is smaller than the sum of its proper divisors (2921204).

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

2550220 is a wasteful number, since it uses less digits than its factorization.

2550220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2769 (or 2767 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 16.

The square root of 2550220 is about 1596.9408254535. The cubic root of 2550220 is about 136.6236496249.

Adding to 2550220 its reverse (220552), we get a palindrome (2770772).

The spelling of 2550220 in words is "two million, five hundred fifty thousand, two hundred twenty".