255713989 has 12 divisors (see below), whose sum is σ = 270942816. Its totient is φ = 241302888.

The previous prime is 255713971. The next prime is 255714049. The reversal of 255713989 is 989317552.

It is not a de Polignac number, because 255713989 - 2⁵ = 255713957 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 (255713959) 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 11 ways as a sum of consecutive naturals, for example, 100912 + ... + 103414.

It is an arithmetic number, because the mean of its divisors is an integer number (22578568).

Almost surely, 2^255713989 is an apocalyptic number.

It is an amenable number.

255713989 is a deficient number, since it is larger than the sum of its proper divisors (15228827).

255713989 is a wasteful number, since it uses less digits than its factorization.

255713989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2824 (or 2805 counting only the distinct ones).

The product of its digits is 680400, while the sum is 49.

The square root of 255713989 is about 15991.0596584467. The cubic root of 255713989 is about 634.7238669608.

The spelling of 255713989 in words is "two hundred fifty-five million, seven hundred thirteen thousand, nine hundred eighty-nine".