2556546 has 8 divisors (see below), whose sum is σ = 5113104. Its totient is φ = 852180.

The previous prime is 2556523. The next prime is 2556559. The reversal of 2556546 is 6456552.

It is a happy number.

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

2556546 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213040 + ... + 213051.

It is an arithmetic number, because the mean of its divisors is an integer number (639138).

2^2556546 is an apocalyptic number.

2556546 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2556546 is a wasteful number, since it uses less digits than its factorization.

2556546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426096.

The product of its digits is 36000, while the sum is 33.

The square root of 2556546 is about 1598.9202606759. The cubic root of 2556546 is about 136.7365245342.

The spelling of 2556546 in words is "two million, five hundred fifty-six thousand, five hundred forty-six".