255680578 has 8 divisors (see below), whose sum is σ = 406080972. Its totient is φ = 120320256.

The previous prime is 255680567. The next prime is 255680603. The reversal of 255680578 is 875086552.

It can be written as a sum of positive squares in 2 ways, for example, as 254625849 + 1054729 = 15957^2 + 1027^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3759975 + ... + 3760042.

Almost surely, 2^255680578 is an apocalyptic number.

255680578 is a deficient number, since it is larger than the sum of its proper divisors (150400394).

255680578 is a wasteful number, since it uses less digits than its factorization.

255680578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7520036.

The product of its (nonzero) digits is 672000, while the sum is 46.

The square root of 255680578 is about 15990.0149468348. The cubic root of 255680578 is about 634.6962219046.

The spelling of 255680578 in words is "two hundred fifty-five million, six hundred eighty thousand, five hundred seventy-eight".