255443580 has 72 divisors (see below), whose sum is σ = 885542112. Its totient is φ = 58386816.

The previous prime is 255443569. The next prime is 255443603. The reversal of 255443580 is 85344552.

255443580 is a `hidden beast` number, since 2 + 5 + 544 + 35 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 100107 + ... + 102626.

It is an arithmetic number, because the mean of its divisors is an integer number (12299196).

Almost surely, 2^255443580 is an apocalyptic number.

255443580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255443580 is an abundant number, since it is smaller than the sum of its proper divisors (630098532).

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

255443580 is a wasteful number, since it uses less digits than its factorization.

255443580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202755 (or 202750 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

The square root of 255443580 is about 15982.6024163776. The cubic root of 255443580 is about 634.5000549566.

The spelling of 255443580 in words is "two hundred fifty-five million, four hundred forty-three thousand, five hundred eighty".