255544951 has 2 divisors, whose sum is σ = 255544952. Its totient is φ = 255544950.

The previous prime is 255544859. The next prime is 255544963. The reversal of 255544951 is 159445552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 255544951 - 2¹³ = 255536759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255545951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127772475 + 127772476.

It is an arithmetic number, because the mean of its divisors is an integer number (127772476).

Almost surely, 2^255544951 is an apocalyptic number.

255544951 is a deficient number, since it is larger than the sum of its proper divisors (1).

255544951 is an equidigital number, since it uses as much as digits as its factorization.

255544951 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 180000, while the sum is 40.

The square root of 255544951 is about 15985.7733938649. The cubic root of 255544951 is about 634.5839761610.

The spelling of 255544951 in words is "two hundred fifty-five million, five hundred forty-four thousand, nine hundred fifty-one".