255465187 has 4 divisors (see below), whose sum is σ = 255547816. Its totient is φ = 255382560.

The previous prime is 255465169. The next prime is 255465227. The reversal of 255465187 is 781564552.

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 255465187 - 2⁷ = 255465059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255465487) 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, 36489 + ... + 42922.

It is an arithmetic number, because the mean of its divisors is an integer number (63886954).

Almost surely, 2^255465187 is an apocalyptic number.

255465187 is a deficient number, since it is larger than the sum of its proper divisors (82629).

255465187 is an equidigital number, since it uses as much as digits as its factorization.

255465187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82628.

The product of its digits is 336000, while the sum is 43.

The square root of 255465187 is about 15983.2783558318. The cubic root of 255465187 is about 634.5179444336.

The spelling of 255465187 in words is "two hundred fifty-five million, four hundred sixty-five thousand, one hundred eighty-seven".