2556063 has 16 divisors (see below), whose sum is σ = 3880800. Its totient is φ = 1661760.

The previous prime is 2556061. The next prime is 2556067. The reversal of 2556063 is 3606552.

2556063 is a `hidden beast` number, since 2 + 55 + 606 + 3 = 666.

It is not a de Polignac number, because 2556063 - 2¹ = 2556061 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2556061) 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, 48 + ... + 2261.

It is an arithmetic number, because the mean of its divisors is an integer number (242550).

2^2556063 is an apocalyptic number.

2556063 is a deficient number, since it is larger than the sum of its proper divisors (1324737).

2556063 is a wasteful number, since it uses less digits than its factorization.

2556063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2359 (or 2353 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 2556063 is about 1598.7692141144. The cubic root of 2556063 is about 136.7279129282.

The spelling of 2556063 in words is "two million, five hundred fifty-six thousand, sixty-three".