255123120 has 160 divisors (see below), whose sum is σ = 909941760. Its totient is φ = 57922560.

The previous prime is 255123119. The next prime is 255123161. The reversal of 255123120 is 21321552.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 303661 + ... + 304499.

It is an arithmetic number, because the mean of its divisors is an integer number (5687136).

Almost surely, 2^255123120 is an apocalyptic number.

255123120 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 255123120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (454970880).

255123120 is an abundant number, since it is smaller than the sum of its proper divisors (654818640).

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

255123120 is a wasteful number, since it uses less digits than its factorization.

255123120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1043 (or 1037 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 255123120 is about 15972.5739941939. The cubic root of 255123120 is about 634.2346121595.

Adding to 255123120 its reverse (21321552), we get a palindrome (276444672).

The spelling of 255123120 in words is "two hundred fifty-five million, one hundred twenty-three thousand, one hundred twenty".