255016240 has 20 divisors (see below), whose sum is σ = 592912944. Its totient is φ = 102006464.

The previous prime is 255016193. The next prime is 255016241. The reversal of 255016240 is 42610552.

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

It is not an unprimeable number, because it can be changed into a prime (255016241) 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, 1593772 + ... + 1593931.

Almost surely, 2^255016240 is an apocalyptic number.

255016240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255016240 is an abundant number, since it is smaller than the sum of its proper divisors (337896704).

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

255016240 is a wasteful number, since it uses less digits than its factorization.

255016240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3187716 (or 3187710 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 255016240 is about 15969.2279086999. The cubic root of 255016240 is about 634.1460320997.

Adding to 255016240 its reverse (42610552), we get a palindrome (297626792).

The spelling of 255016240 in words is "two hundred fifty-five million, sixteen thousand, two hundred forty".