255956487 has 4 divisors (see below), whose sum is σ = 341275320. Its totient is φ = 170637656.

The previous prime is 255956483. The next prime is 255956527. The reversal of 255956487 is 784659552.

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 255956487 - 2² = 255956483 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255956483) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 42659412 + ... + 42659417.

It is an arithmetic number, because the mean of its divisors is an integer number (85318830).

Almost surely, 2^255956487 is an apocalyptic number.

255956487 is a deficient number, since it is larger than the sum of its proper divisors (85318833).

255956487 is an equidigital number, since it uses as much as digits as its factorization.

255956487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85318832.

The product of its digits is 3024000, while the sum is 51.

The square root of 255956487 is about 15998.6401609637. The cubic root of 255956487 is about 634.9244434457.

The spelling of 255956487 in words is "two hundred fifty-five million, nine hundred fifty-six thousand, four hundred eighty-seven".