255317400 has 192 divisors, whose sum is σ = 947335200. Its totient is φ = 62830080.

The previous prime is 255317393. The next prime is 255317423. The reversal of 255317400 is 4713552.

It is a happy number.

255317400 is a `hidden beast` number, since 255 + 3 + 1 + 7 + 400 = 666.

255317400 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 68382 + ... + 72018.

Almost surely, 2^255317400 is an apocalyptic number.

255317400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255317400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (473667600).

255317400 is an abundant number, since it is smaller than the sum of its proper divisors (692017800).

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

255317400 is a wasteful number, since it uses less digits than its factorization.

255317400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3675 (or 3660 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 255317400 is about 15978.6545115664. The cubic root of 255317400 is about 634.3955642989.

The spelling of 255317400 in words is "two hundred fifty-five million, three hundred seventeen thousand, four hundred".