255820382 has 8 divisors (see below), whose sum is σ = 384294456. Its totient is φ = 127722232.

The previous prime is 255820381. The next prime is 255820391. The reversal of 255820382 is 283028552.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255820381) 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 3 ways as a sum of consecutive naturals, for example, 92273 + ... + 95004.

It is an arithmetic number, because the mean of its divisors is an integer number (48036807).

Almost surely, 2^255820382 is an apocalyptic number.

255820382 is a deficient number, since it is larger than the sum of its proper divisors (128474074).

255820382 is a wasteful number, since it uses less digits than its factorization.

255820382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187962.

The product of its (nonzero) digits is 38400, while the sum is 35.

The square root of 255820382 is about 15994.3859525772. The cubic root of 255820382 is about 634.8118830202.

The spelling of 255820382 in words is "two hundred fifty-five million, eight hundred twenty thousand, three hundred eighty-two".