255460816 has 80 divisors (see below), whose sum is σ = 565213824. Its totient is φ = 110956032.

The previous prime is 255460811. The next prime is 255460831. The reversal of 255460816 is 618064552.

It is a super-2 number, since 2×255460816² = 130520457022771712, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255460811) 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 15 ways as a sum of consecutive naturals, for example, 320130 + ... + 320926.

Almost surely, 2^255460816 is an apocalyptic number.

255460816 is a gapful number since it is divisible by the number (26) 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 255460816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (282606912).

255460816 is an abundant number, since it is smaller than the sum of its proper divisors (309753008).

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

255460816 is a wasteful number, since it uses less digits than its factorization.

255460816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908 (or 902 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 255460816 is about 15983.1416185930. The cubic root of 255460816 is about 634.5143255534.

The spelling of 255460816 in words is "two hundred fifty-five million, four hundred sixty thousand, eight hundred sixteen".