255622180 has 72 divisors (see below), whose sum is σ = 601478136. Its totient is φ = 91153920.

The previous prime is 255622177. The next prime is 255622201. The reversal of 255622180 is 81226552.

It can be written as a sum of positive squares in 4 ways, for example, as 71368704 + 184253476 = 8448^2 + 13574^2 .

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, 127264 + ... + 129256.

It is an arithmetic number, because the mean of its divisors is an integer number (8353863).

Almost surely, 2^255622180 is an apocalyptic number.

255622180 is a gapful number since it is divisible by the number (20) 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 255622180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (300739068).

255622180 is an abundant number, since it is smaller than the sum of its proper divisors (345855956).

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

255622180 is a wasteful number, since it uses less digits than its factorization.

255622180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2077 (or 2064 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 255622180 is about 15988.1887654606. The cubic root of 255622180 is about 634.6478962261.

The spelling of 255622180 in words is "two hundred fifty-five million, six hundred twenty-two thousand, one hundred eighty".