2559878 has 8 divisors (see below), whose sum is σ = 3846960. Its totient is φ = 1277560.

The previous prime is 2559863. The next prime is 2559901. The reversal of 2559878 is 8789552.

2559878 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 863 + ... + 2421.

It is an arithmetic number, because the mean of its divisors is an integer number (480870).

2^2559878 is an apocalyptic number.

2559878 is a deficient number, since it is larger than the sum of its proper divisors (1287082).

2559878 is a wasteful number, since it uses less digits than its factorization.

2559878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2382.

The product of its digits is 201600, while the sum is 44.

The square root of 2559878 is about 1599.9618745458. The cubic root of 2559878 is about 136.7959026052.

It can be divided in two parts, 255 and 9878, that multiplied together give a triangular number (2518890 = T₂₂₄₄).

The spelling of 2559878 in words is "two million, five hundred fifty-nine thousand, eight hundred seventy-eight".