255124240 has 40 divisors (see below), whose sum is σ = 677903040. Its totient is φ = 87470976.

The previous prime is 255124193. The next prime is 255124241. The reversal of 255124240 is 42421552.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (255124241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227230 + ... + 228349.

It is an arithmetic number, because the mean of its divisors is an integer number (16947576).

Almost surely, 2^255124240 is an apocalyptic number.

255124240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255124240 is an abundant number, since it is smaller than the sum of its proper divisors (422778800).

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

255124240 is a wasteful number, since it uses less digits than its factorization.

255124240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455599 (or 455593 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 255124240 is about 15972.6090542528. The cubic root of 255124240 is about 634.2355402627.

Adding to 255124240 its reverse (42421552), we get a palindrome (297545792).

The spelling of 255124240 in words is "two hundred fifty-five million, one hundred twenty-four thousand, two hundred forty".