2555968 has 14 divisors (see below), whose sum is σ = 5072126. Its totient is φ = 1277952.

The previous prime is 2555957. The next prime is 2555989. The reversal of 2555968 is 8695552.

It can be written as a sum of positive squares in only one way, i.e., 2458624 + 97344 = 1568^2 + 312^2 .

It is a d-powerful number, because it can be written as 2¹⁹ + 5³ + 5⁷ + 5⁹ + 9² + 6³ + 8 .

It is a self number, because there is not a number n which added to its sum of digits gives 2555968.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19905 + ... + 20032.

2^2555968 is an apocalyptic number.

It is an amenable number.

2555968 is a deficient number, since it is larger than the sum of its proper divisors (2516158).

2555968 is an equidigital number, since it uses as much as digits as its factorization.

2555968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39949 (or 39939 counting only the distinct ones).

The product of its digits is 108000, while the sum is 40.

The square root of 2555968 is about 1598.7395034839. The cubic root of 2555968 is about 136.7262190064.

The spelling of 2555968 in words is "two million, five hundred fifty-five thousand, nine hundred sixty-eight".