255581480 has 64 divisors (see below), whose sum is σ = 716964480. Its totient is φ = 79660800.

The previous prime is 255581477. The next prime is 255581509. The reversal of 255581480 is 84185552.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38411 + ... + 44570.

It is an arithmetic number, because the mean of its divisors is an integer number (11202570).

Almost surely, 2^255581480 is an apocalyptic number.

255581480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255581480 is an abundant number, since it is smaller than the sum of its proper divisors (461383000).

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

255581480 is a wasteful number, since it uses less digits than its factorization.

255581480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83010 (or 83006 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 38.

The square root of 255581480 is about 15986.9159001979. The cubic root of 255581480 is about 634.6142116943.

The spelling of 255581480 in words is "two hundred fifty-five million, five hundred eighty-one thousand, four hundred eighty".