255647087 has 4 divisors (see below), whose sum is σ = 255740160. Its totient is φ = 255554016.

The previous prime is 255647057. The next prime is 255647099. The reversal of 255647087 is 780746552.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 255647087 - 2¹⁴ = 255630703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255647027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42287 + ... + 47952.

It is an arithmetic number, because the mean of its divisors is an integer number (63935040).

Almost surely, 2^255647087 is an apocalyptic number.

255647087 is a deficient number, since it is larger than the sum of its proper divisors (93073).

255647087 is an equidigital number, since it uses as much as digits as its factorization.

255647087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93072.

The product of its (nonzero) digits is 470400, while the sum is 44.

The square root of 255647087 is about 15988.9676652372. The cubic root of 255647087 is about 634.6685082374.

The spelling of 255647087 in words is "two hundred fifty-five million, six hundred forty-seven thousand, eighty-seven".