2556554 has 32 divisors (see below), whose sum is σ = 5152896. Its totient is φ = 918720.

The previous prime is 2556523. The next prime is 2556559. The reversal of 2556554 is 4556552.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 2556554.

It is not an unprimeable number, because it can be changed into a prime (2556559) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1364 + ... + 2640.

It is an arithmetic number, because the mean of its divisors is an integer number (161028).

2^2556554 is an apocalyptic number.

2556554 is an abundant number, since it is smaller than the sum of its proper divisors (2596342).

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

2556554 is a wasteful number, since it uses less digits than its factorization.

2556554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1310.

The product of its digits is 30000, while the sum is 32.

The square root of 2556554 is about 1598.9227623622. The cubic root of 2556554 is about 136.7366671604.

The spelling of 2556554 in words is "two million, five hundred fifty-six thousand, five hundred fifty-four".