2556441224 has 8 divisors (see below), whose sum is σ = 4793327310. Its totient is φ = 1278220608.

The previous prime is 2556441221. The next prime is 2556441227. The reversal of 2556441224 is 4221446552.

It is an interprime number because it is at equal distance from previous prime (2556441221) and next prime (2556441227).

It can be written as a sum of positive squares in only one way, i.e., 2548432324 + 8008900 = 50482^2 + 2830^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (2556441221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159777569 + ... + 159777584.

Almost surely, 2^2556441224 is an apocalyptic number.

It is an amenable number.

2556441224 is a deficient number, since it is larger than the sum of its proper divisors (2236886086).

2556441224 is a wasteful number, since it uses less digits than its factorization.

2556441224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319555159 (or 319555155 counting only the distinct ones).

The product of its digits is 76800, while the sum is 35.

The square root of 2556441224 is about 50561.2620886781. The cubic root of 2556441224 is about 1367.3465653189.

Adding to 2556441224 its reverse (4221446552), we get a palindrome (6777887776).

The spelling of 2556441224 in words is "two billion, five hundred fifty-six million, four hundred forty-one thousand, two hundred twenty-four".