255241520 has 20 divisors (see below), whose sum is σ = 593436720. Its totient is φ = 102096576.

The previous prime is 255241501. The next prime is 255241529. The reversal of 255241520 is 25142552.

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 255241520.

It is not an unprimeable number, because it can be changed into a prime (255241529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1595180 + ... + 1595339.

It is an arithmetic number, because the mean of its divisors is an integer number (29671836).

Almost surely, 2^255241520 is an apocalyptic number.

255241520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255241520 is an abundant number, since it is smaller than the sum of its proper divisors (338195200).

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

255241520 is a wasteful number, since it uses less digits than its factorization.

255241520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3190532 (or 3190526 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 255241520 is about 15976.2799174276. The cubic root of 255241520 is about 634.3327108924.

The spelling of 255241520 in words is "two hundred fifty-five million, two hundred forty-one thousand, five hundred twenty".