255278748 has 48 divisors (see below), whose sum is σ = 624024576. Its totient is φ = 81069120.

The previous prime is 255278743. The next prime is 255278773. The reversal of 255278748 is 847872552.

It is a junction number, because it is equal to n+sod(n) for n = 255278697 and 255278706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255278741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73090 + ... + 76502.

It is an arithmetic number, because the mean of its divisors is an integer number (13000512).

Almost surely, 2^255278748 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255278748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (312012288).

255278748 is an abundant number, since it is smaller than the sum of its proper divisors (368745828).

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

255278748 is a wasteful number, since it uses less digits than its factorization.

255278748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3714 (or 3712 counting only the distinct ones).

The product of its digits is 1254400, while the sum is 48.

The square root of 255278748 is about 15977.4449772171. Note that the first 3 decimals coincide. The cubic root of 255278748 is about 634.3635493836.

The spelling of 255278748 in words is "two hundred fifty-five million, two hundred seventy-eight thousand, seven hundred forty-eight".