2555564 has 18 divisors (see below), whose sum is σ = 4899132. Its totient is φ = 1156800.

The previous prime is 2555561. The next prime is 2555569. The reversal of 2555564 is 4655552.

It is a d-powerful number, because it can be written as 2¹⁴ + 5³ + 5⁷ + 5⁸ + 5⁸ + 6⁸ + 4³ .

It is a self number, because there is not a number n which added to its sum of digits gives 2555564.

It is not an unprimeable number, because it can be changed into a prime (2555561) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10484 + ... + 10724.

It is an arithmetic number, because the mean of its divisors is an integer number (272174).

2^2555564 is an apocalyptic number.

It is an amenable number.

2555564 is a deficient number, since it is larger than the sum of its proper divisors (2343568).

2555564 is a wasteful number, since it uses less digits than its factorization.

2555564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497 (or 254 counting only the distinct ones).

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

The square root of 2555564 is about 1598.6131489513. The cubic root of 2555564 is about 136.7190149121.

The spelling of 2555564 in words is "two million, five hundred fifty-five thousand, five hundred sixty-four".