255366587 has 16 divisors (see below), whose sum is σ = 298584000. Its totient is φ = 218312640.

The previous prime is 255366583. The next prime is 255366613. The reversal of 255366587 is 785663552.

It is not a de Polignac number, because 255366587 - 2² = 255366583 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255366583) 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, 177989 + ... + 179417.

It is an arithmetic number, because the mean of its divisors is an integer number (18661500).

Almost surely, 2^255366587 is an apocalyptic number.

255366587 is a deficient number, since it is larger than the sum of its proper divisors (43217413).

255366587 is an equidigital number, since it uses as much as digits as its factorization.

255366587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1971 (or 1957 counting only the distinct ones).

The product of its digits is 1512000, while the sum is 47.

The square root of 255366587 is about 15980.1935845596. The cubic root of 255366587 is about 634.4363005368.

It can be divided in two parts, 25536 and 6587, that added together give a palindrome (32123).

The spelling of 255366587 in words is "two hundred fifty-five million, three hundred sixty-six thousand, five hundred eighty-seven".