255578872 has 8 divisors (see below), whose sum is σ = 479210400. Its totient is φ = 127789432.

The previous prime is 255578863. The next prime is 255578909. The reversal of 255578872 is 278875552.

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

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, 15973672 + ... + 15973687.

It is an arithmetic number, because the mean of its divisors is an integer number (59901300).

Almost surely, 2^255578872 is an apocalyptic number.

It is an amenable number.

255578872 is a deficient number, since it is larger than the sum of its proper divisors (223631528).

255578872 is a wasteful number, since it uses less digits than its factorization.

255578872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31947365 (or 31947361 counting only the distinct ones).

The product of its digits is 1568000, while the sum is 49.

The square root of 255578872 is about 15986.8343332881. The cubic root of 255578872 is about 634.6120531139.

The spelling of 255578872 in words is "two hundred fifty-five million, five hundred seventy-eight thousand, eight hundred seventy-two".