255205408 has 12 divisors (see below), whose sum is σ = 502435710. Its totient is φ = 127602688.

The previous prime is 255205393. The next prime is 255205409. The reversal of 255205408 is 804502552.

It can be written as a sum of positive squares in only one way, i.e., 207705744 + 47499664 = 14412^2 + 6892^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 255205408.

It is not an unprimeable number, because it can be changed into a prime (255205409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3987553 + ... + 3987616.

Almost surely, 2^255205408 is an apocalyptic number.

It is an amenable number.

255205408 is a deficient number, since it is larger than the sum of its proper divisors (247230302).

255205408 is an equidigital number, since it uses as much as digits as its factorization.

255205408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7975179 (or 7975171 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 31.

The square root of 255205408 is about 15975.1497019590. The cubic root of 255205408 is about 634.3027939948.

The spelling of 255205408 in words is "two hundred fifty-five million, two hundred five thousand, four hundred eight".