255605338 has 4 divisors (see below), whose sum is σ = 383408010. Its totient is φ = 127802668.

The previous prime is 255605321. The next prime is 255605341. The reversal of 255605338 is 833506552.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 247212729 + 8392609 = 15723^2 + 2897^2 .

It is a junction number, because it is equal to n+sod(n) for n = 255605297 and 255605306.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63901333 + ... + 63901336.

Almost surely, 2^255605338 is an apocalyptic number.

255605338 is a deficient number, since it is larger than the sum of its proper divisors (127802672).

255605338 is a wasteful number, since it uses less digits than its factorization.

255605338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127802671.

The product of its (nonzero) digits is 108000, while the sum is 37.

The square root of 255605338 is about 15987.6620554727. The cubic root of 255605338 is about 634.6339577191.

The spelling of 255605338 in words is "two hundred fifty-five million, six hundred five thousand, three hundred thirty-eight".