255242404 has 6 divisors (see below), whose sum is σ = 446674214. Its totient is φ = 127621200.

The previous prime is 255242389. The next prime is 255242417. The reversal of 255242404 is 404242552.

255242404 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 only one way, i.e., 240188004 + 15054400 = 15498^2 + 3880^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31905297 + ... + 31905304.

Almost surely, 2^255242404 is an apocalyptic number.

It is an amenable number.

255242404 is a deficient number, since it is larger than the sum of its proper divisors (191431810).

255242404 is a wasteful number, since it uses less digits than its factorization.

255242404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63810605 (or 63810603 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 28.

The square root of 255242404 is about 15976.3075834186. The cubic root of 255242404 is about 634.3334432046. Note that the first 3 decimals are identical.

Adding to 255242404 its reverse (404242552), we get a palindrome (659484956).

The spelling of 255242404 in words is "two hundred fifty-five million, two hundred forty-two thousand, four hundred four".