255921360 has 40 divisors (see below), whose sum is σ = 793356960. Its totient is φ = 68245632.

The previous prime is 255921359. The next prime is 255921361. The reversal of 255921360 is 63129552.

It is an interprime number because it is at equal distance from previous prime (255921359) and next prime (255921361).

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255921361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 532930 + ... + 533409.

It is an arithmetic number, because the mean of its divisors is an integer number (19833924).

Almost surely, 2^255921360 is an apocalyptic number.

255921360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255921360 is an abundant number, since it is smaller than the sum of its proper divisors (537435600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

255921360 is a wasteful number, since it uses less digits than its factorization.

255921360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066355 (or 1066349 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 255921360 is about 15997.5423112427. The cubic root of 255921360 is about 634.8953968272.

The spelling of 255921360 in words is "two hundred fifty-five million, nine hundred twenty-one thousand, three hundred sixty".