255145659 has 4 divisors (see below), whose sum is σ = 340194216. Its totient is φ = 170097104.

The previous prime is 255145643. The next prime is 255145691. The reversal of 255145659 is 956541552.

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 255145659 - 2⁴ = 255145643 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 255145659.

It is not an unprimeable number, because it can be changed into a prime (255145619) 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, 42524274 + ... + 42524279.

It is an arithmetic number, because the mean of its divisors is an integer number (85048554).

Almost surely, 2^255145659 is an apocalyptic number.

255145659 is a deficient number, since it is larger than the sum of its proper divisors (85048557).

255145659 is an equidigital number, since it uses as much as digits as its factorization.

255145659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85048556.

The product of its digits is 270000, while the sum is 42.

The square root of 255145659 is about 15973.2795317680. The cubic root of 255145659 is about 634.2532888844.

The spelling of 255145659 in words is "two hundred fifty-five million, one hundred forty-five thousand, six hundred fifty-nine".