255163320 has 96 divisors (see below), whose sum is σ = 835960320. Its totient is φ = 67495680.

The previous prime is 255163313. The next prime is 255163351. The reversal of 255163320 is 23361552.

255163320 is a `hidden beast` number, since 2 + 5 + 5 + 1 + 633 + 20 = 666.

255163320 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42930 + ... + 48510.

It is an arithmetic number, because the mean of its divisors is an integer number (8707920).

Almost surely, 2^255163320 is an apocalyptic number.

255163320 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 255163320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (417980160).

255163320 is an abundant number, since it is smaller than the sum of its proper divisors (580797000).

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

255163320 is a wasteful number, since it uses less digits than its factorization.

255163320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5725 (or 5718 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 255163320 is about 15973.8323516932. The cubic root of 255163320 is about 634.2679227331.

The spelling of 255163320 in words is "two hundred fifty-five million, one hundred sixty-three thousand, three hundred twenty".