255433540 has 24 divisors (see below), whose sum is σ = 536903640. Its totient is φ = 102079488.

The previous prime is 255433513. The next prime is 255433573. The reversal of 255433540 is 45334552.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9821956 + 245611584 = 3134^2 + 15672^2 .

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18996 + ... + 29524.

It is an arithmetic number, because the mean of its divisors is an integer number (22370985).

Almost surely, 2^255433540 is an apocalyptic number.

255433540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255433540 is an abundant number, since it is smaller than the sum of its proper divisors (281470100).

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

255433540 is a wasteful number, since it uses less digits than its factorization.

255433540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11751 (or 11749 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 31.

The square root of 255433540 is about 15982.2883217642. The cubic root of 255433540 is about 634.4917420133.

The spelling of 255433540 in words is "two hundred fifty-five million, four hundred thirty-three thousand, five hundred forty".