255298986 has 32 divisors (see below), whose sum is σ = 578041920. Its totient is φ = 83493072.

The previous prime is 255298973. The next prime is 255298987. The reversal of 255298986 is 689892552.

255298986 is a `hidden beast` number, since 2 + 552 + 9 + 8 + 9 + 86 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (255298987) by changing a digit.

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, 41740 + ... + 47463.

It is an arithmetic number, because the mean of its divisors is an integer number (18063810).

Almost surely, 2^255298986 is an apocalyptic number.

255298986 is an abundant number, since it is smaller than the sum of its proper divisors (322742934).

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

255298986 is a wasteful number, since it uses less digits than its factorization.

255298986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89267 (or 89261 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 54.

The square root of 255298986 is about 15978.0782949640. The cubic root of 255298986 is about 634.3803126412.

The spelling of 255298986 in words is "two hundred fifty-five million, two hundred ninety-eight thousand, nine hundred eighty-six".