255812677 has 4 divisors (see below), whose sum is σ = 258076620. Its totient is φ = 253548736.

The previous prime is 255812657. The next prime is 255812701. The reversal of 255812677 is 776218552.

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

It can be written as a sum of positive squares in 2 ways, for example, as 10764961 + 245047716 = 3281^2 + 15654^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255812677 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 (255812657) 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, 1131802 + ... + 1132027.

It is an arithmetic number, because the mean of its divisors is an integer number (64519155).

Almost surely, 2^255812677 is an apocalyptic number.

It is an amenable number.

255812677 is a deficient number, since it is larger than the sum of its proper divisors (2263943).

255812677 is a wasteful number, since it uses less digits than its factorization.

255812677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2263942.

The product of its digits is 235200, while the sum is 43.

The square root of 255812677 is about 15994.1450849991. The cubic root of 255812677 is about 634.8055097013.

The spelling of 255812677 in words is "two hundred fifty-five million, eight hundred twelve thousand, six hundred seventy-seven".