255405371 has 8 divisors (see below), whose sum is σ = 275684640. Its totient is φ = 235216512.

The previous prime is 255405343. The next prime is 255405377. The reversal of 255405371 is 173504552.

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

It is a cyclic number.

It is not a de Polignac number, because 255405371 - 2⁶ = 255405307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255405377) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 16670 + ... + 28083.

It is an arithmetic number, because the mean of its divisors is an integer number (34460580).

Almost surely, 2^255405371 is an apocalyptic number.

255405371 is a deficient number, since it is larger than the sum of its proper divisors (20279269).

255405371 is a wasteful number, since it uses less digits than its factorization.

255405371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45205.

The product of its (nonzero) digits is 21000, while the sum is 32.

The square root of 255405371 is about 15981.4070406832. The cubic root of 255405371 is about 634.4684174140.

The spelling of 255405371 in words is "two hundred fifty-five million, four hundred five thousand, three hundred seventy-one".