255242244 has 12 divisors (see below), whose sum is σ = 595565264. Its totient is φ = 85080744.

The previous prime is 255242213. The next prime is 255242249. The reversal of 255242244 is 442242552.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (255242249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10635082 + ... + 10635105.

Almost surely, 2^255242244 is an apocalyptic number.

It is an amenable number.

255242244 is an abundant number, since it is smaller than the sum of its proper divisors (340323020).

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

255242244 is a wasteful number, since it uses less digits than its factorization.

255242244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21270194 (or 21270192 counting only the distinct ones).

The product of its digits is 25600, while the sum is 30.

The square root of 255242244 is about 15976.3025760030. The cubic root of 255242244 is about 634.3333106595. Note that the first 4 decimals are identical.

Adding to 255242244 its reverse (442242552), we get a palindrome (697484796).

The spelling of 255242244 in words is "two hundred fifty-five million, two hundred forty-two thousand, two hundred forty-four".