255591087 has 8 divisors (see below), whose sum is σ = 343390080. Its totient is φ = 169093080.

The previous prime is 255591067. The next prime is 255591103. The reversal of 255591087 is 780195552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 255591087 - 2¹⁴ = 255574703 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255591067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 324787 + ... + 325572.

It is an arithmetic number, because the mean of its divisors is an integer number (42923760).

Almost surely, 2^255591087 is an apocalyptic number.

255591087 is a deficient number, since it is larger than the sum of its proper divisors (87798993).

255591087 is a wasteful number, since it uses less digits than its factorization.

255591087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650493.

The product of its (nonzero) digits is 126000, while the sum is 42.

The square root of 255591087 is about 15987.2163618311. The cubic root of 255591087 is about 634.6221630559.

The spelling of 255591087 in words is "two hundred fifty-five million, five hundred ninety-one thousand, eighty-seven".