255520770 has 16 divisors (see below), whose sum is σ = 613249920. Its totient is φ = 68138864.

The previous prime is 255520757. The next prime is 255520801. The reversal of 255520770 is 77025552.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4258650 + ... + 4258709.

It is an arithmetic number, because the mean of its divisors is an integer number (38328120).

Almost surely, 2^255520770 is an apocalyptic number.

255520770 is an abundant number, since it is smaller than the sum of its proper divisors (357729150).

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

255520770 is a wasteful number, since it uses less digits than its factorization.

255520770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8517369.

The product of its (nonzero) digits is 24500, while the sum is 33.

The square root of 255520770 is about 15985.0170472227. The cubic root of 255520770 is about 634.5639596445.

The spelling of 255520770 in words is "two hundred fifty-five million, five hundred twenty thousand, seven hundred seventy".