255898408 has 8 divisors (see below), whose sum is σ = 479809530. Its totient is φ = 127949200.

The previous prime is 255898381. The next prime is 255898421. The reversal of 255898408 is 804898552.

It can be written as a sum of positive squares in only one way, i.e., 199317924 + 56580484 = 14118^2 + 7522^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15993643 + ... + 15993658.

Almost surely, 2^255898408 is an apocalyptic number.

It is an amenable number.

255898408 is a deficient number, since it is larger than the sum of its proper divisors (223911122).

255898408 is a wasteful number, since it uses less digits than its factorization.

255898408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31987307 (or 31987303 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 49.

The square root of 255898408 is about 15996.8249349676. The cubic root of 255898408 is about 634.8764163159.

The spelling of 255898408 in words is "two hundred fifty-five million, eight hundred ninety-eight thousand, four hundred eight".