2205144250 has 16 divisors (see below), whose sum is σ = 4128030504. Its totient is φ = 882057600.

The previous prime is 2205144209. The next prime is 2205144257. The reversal of 2205144250 is 524415022.

It can be written as a sum of positive squares in 4 ways, for example, as 509269489 + 1695874761 = 22567^2 + 41181^2 .

It is a super-2 number, since 2×2205144250² = 9725322326616125000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (2205144257) 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, 4410039 + ... + 4410538.

Almost surely, 2^2205144250 is an apocalyptic number.

2205144250 is a deficient number, since it is larger than the sum of its proper divisors (1922886254).

2205144250 is an equidigital number, since it uses as much as digits as its factorization.

2205144250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8820594 (or 8820584 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 2205144250 is about 46958.9634681176. The cubic root of 2205144250 is about 1301.6043801049.

Adding to 2205144250 its reverse (524415022), we get a palindrome (2729559272).

The spelling of 2205144250 in words is "two billion, two hundred five million, one hundred forty-four thousand, two hundred fifty".