255661204 has 6 divisors (see below), whose sum is σ = 447407114. Its totient is φ = 127830600.

The previous prime is 255661183. The next prime is 255661223. The reversal of 255661204 is 402166552.

255661204 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., 254338704 + 1322500 = 15948^2 + 1150^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31957647 + ... + 31957654.

Almost surely, 2^255661204 is an apocalyptic number.

It is an amenable number.

255661204 is a deficient number, since it is larger than the sum of its proper divisors (191745910).

255661204 is a wasteful number, since it uses less digits than its factorization.

255661204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63915305 (or 63915303 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 255661204 is about 15989.4091197893. The cubic root of 255661204 is about 634.6801902930.

The spelling of 255661204 in words is "two hundred fifty-five million, six hundred sixty-one thousand, two hundred four".