255553994 has 8 divisors (see below), whose sum is σ = 383443200. Its totient is φ = 127739596.

The previous prime is 255553981. The next prime is 255554011. The reversal of 255553994 is 499355552.

It is a happy number.

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 (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9194 + ... + 24405.

It is an arithmetic number, because the mean of its divisors is an integer number (47930400).

Almost surely, 2^255553994 is an apocalyptic number.

255553994 is a deficient number, since it is larger than the sum of its proper divisors (127889206).

255553994 is a wasteful number, since it uses less digits than its factorization.

255553994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37404.

The product of its digits is 1215000, while the sum is 47.

The square root of 255553994 is about 15986.0562366082. The cubic root of 255553994 is about 634.5914614393.

The spelling of 255553994 in words is "two hundred fifty-five million, five hundred fifty-three thousand, nine hundred ninety-four".