255863830 has 16 divisors (see below), whose sum is σ = 460953504. Its totient is φ = 102256960.

The previous prime is 255863827. The next prime is 255863831. The reversal of 255863830 is 38368552.

It is a happy number.

It is a super-3 number, since 3×255863830³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255863831) 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, 1770 + ... + 22690.

It is an arithmetic number, because the mean of its divisors is an integer number (28809594).

Almost surely, 2^255863830 is an apocalyptic number.

255863830 is a deficient number, since it is larger than the sum of its proper divisors (205089674).

255863830 is a wasteful number, since it uses less digits than its factorization.

255863830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22151.

The product of its (nonzero) digits is 172800, while the sum is 40.

The square root of 255863830 is about 15995.7441214843. The cubic root of 255863830 is about 634.8478193612.

The spelling of 255863830 in words is "two hundred fifty-five million, eight hundred sixty-three thousand, eight hundred thirty".