255776049 has 15 divisors (see below), whose sum is σ = 382300347. Its totient is φ = 170421408.

The previous prime is 255776047. The next prime is 255776057. The reversal of 255776049 is 940677552.

The square root of 255776049 is 15993.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 129618225 + 126157824 = 11385^2 + 11232^2 .

It is not a de Polignac number, because 255776049 - 2¹ = 255776047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 255775995 and 255776013.

It is not an unprimeable number, because it can be changed into a prime (255776047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 143049 + ... + 144825.

Almost surely, 2^255776049 is an apocalyptic number.

255776049 is the 15993-rd square number.

255776049 is the 7997-th centered octagonal number.

It is an amenable number.

255776049 is a deficient number, since it is larger than the sum of its proper divisors (126524298).

255776049 is an frugal number, since it uses more digits than its factorization.

255776049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3566 (or 1780 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 45.

The cubic root of 255776049 is about 634.7752104913.

It can be divided in two parts, 25577 and 6049, that added together give a triangular number (31626 = T₂₅₁).

The spelling of 255776049 in words is "two hundred fifty-five million, seven hundred seventy-six thousand, forty-nine".