255224540 has 24 divisors (see below), whose sum is σ = 536619552. Its totient is φ = 101966400.

The previous prime is 255224539. The next prime is 255224609. The reversal of 255224540 is 45422552.

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 7 ways as a sum of consecutive naturals, for example, 10265 + ... + 24815.

It is an arithmetic number, because the mean of its divisors is an integer number (22359148).

Almost surely, 2^255224540 is an apocalyptic number.

255224540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255224540 is an abundant number, since it is smaller than the sum of its proper divisors (281395012).

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

255224540 is a wasteful number, since it uses less digits than its factorization.

255224540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15437 (or 15435 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 29.

The square root of 255224540 is about 15975.7484957670. The cubic root of 255224540 is about 634.3186442046.

The spelling of 255224540 in words is "two hundred fifty-five million, two hundred twenty-four thousand, five hundred forty".