255603042 has 48 divisors (see below), whose sum is σ = 574998840. Its totient is φ = 81962496.

The previous prime is 255603037. The next prime is 255603077. The reversal of 255603042 is 240306552.

255603042 is a `hidden beast` number, since 2 + 55 + 603 + 0 + 4 + 2 = 666.

255603042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 246835521 + 8767521 = 15711^2 + 2961^2 .

It is a junction number, because it is equal to n+sod(n) for n = 255602997 and 255603015.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 175188 + ... + 176640.

Almost surely, 2^255603042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255603042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (287499420).

255603042 is an abundant number, since it is smaller than the sum of its proper divisors (319395798).

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

255603042 is a wasteful number, since it uses less digits than its factorization.

255603042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1827 (or 1824 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 255603042 is about 15987.5902499407. The cubic root of 255603042 is about 634.6320574929.

Adding to 255603042 its reverse (240306552), we get a palindrome (495909594).

The spelling of 255603042 in words is "two hundred fifty-five million, six hundred three thousand, forty-two".