20250220 has 24 divisors (see below), whose sum is σ = 42611184. Its totient is φ = 8083776.

The previous prime is 20250203. The next prime is 20250227. The reversal of 20250220 is 2205202.

It is a self number, because there is not a number n which added to its sum of digits gives 20250220.

It is not an unprimeable number, because it can be changed into a prime (20250227) 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, 16467 + ... + 17653.

It is an arithmetic number, because the mean of its divisors is an integer number (1775466).

Almost surely, 2^20250220 is an apocalyptic number.

20250220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20250220 is an abundant number, since it is smaller than the sum of its proper divisors (22360964).

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

20250220 is a wasteful number, since it uses less digits than its factorization.

20250220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2049 (or 2047 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 13.

The square root of 20250220 is about 4500.0244443781. The cubic root of 20250220 is about 272.5690759991.

Adding to 20250220 its reverse (2205202), we get a palindrome (22455422).

The spelling of 20250220 in words is "twenty million, two hundred fifty thousand, two hundred twenty".