255024 has 120 divisors (see below), whose sum is σ = 928512. Its totient is φ = 63360.

The previous prime is 255023. The next prime is 255043. The reversal of 255024 is 420552.

It is a Cunningham number, because it is equal to 505²-1.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 254988 and 255006.

It is not an unprimeable number, because it can be changed into a prime (255023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11077 + ... + 11099.

2²⁵⁵⁰²⁴ is an apocalyptic number.

255024 is a gapful number since it is divisible by the number (24) 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 255024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (464256).

255024 is an abundant number, since it is smaller than the sum of its proper divisors (673488).

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

255024 is a wasteful number, since it uses less digits than its factorization.

255024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55 (or 46 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 255024 is about 504.9990099000. Note that the first 3 decimals coincide. The cubic root of 255024 is about 63.4152464270.

Adding to 255024 its reverse (420552), we get a palindrome (675576).

The spelling of 255024 in words is "two hundred fifty-five thousand, twenty-four".