255536977 has 2 divisors, whose sum is σ = 255536978. Its totient is φ = 255536976.

The previous prime is 255536971. The next prime is 255536989. The reversal of 255536977 is 779635552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 221384641 + 34152336 = 14879^2 + 5844^2 .

It is a cyclic number.

It is not a de Polignac number, because 255536977 - 2²⁷ = 121319249 is a prime.

It is a super-2 number, since 2×255536977² = 130598293228597058, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 255536977.

It is not a weakly prime, because it can be changed into another prime (255536971) 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 as a sum of consecutive naturals, namely, 127768488 + 127768489.

It is an arithmetic number, because the mean of its divisors is an integer number (127768489).

Almost surely, 2^255536977 is an apocalyptic number.

It is an amenable number.

255536977 is a deficient number, since it is larger than the sum of its proper divisors (1).

255536977 is an equidigital number, since it uses as much as digits as its factorization.

255536977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1984500, while the sum is 49.

The square root of 255536977 is about 15985.5239826538. The cubic root of 255536977 is about 634.5773755933.

The spelling of 255536977 in words is "two hundred fifty-five million, five hundred thirty-six thousand, nine hundred seventy-seven".