1255485867 has 4 divisors (see below), whose sum is σ = 1673981160. Its totient is φ = 836990576.

The previous prime is 1255485851. The next prime is 1255485877. The reversal of 1255485867 is 7685845521.

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 1255485867 - 2⁴ = 1255485851 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1255485817) 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, 209247642 + ... + 209247647.

It is an arithmetic number, because the mean of its divisors is an integer number (418495290).

Almost surely, 2^1255485867 is an apocalyptic number.

1255485867 is a deficient number, since it is larger than the sum of its proper divisors (418495293).

1255485867 is an equidigital number, since it uses as much as digits as its factorization.

1255485867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418495292.

The product of its digits is 2688000, while the sum is 51.

The square root of 1255485867 is about 35432.8359999591. The cubic root of 1255485867 is about 1078.7909042556.

The spelling of 1255485867 in words is "one billion, two hundred fifty-five million, four hundred eighty-five thousand, eight hundred sixty-seven".