2558655 has 32 divisors (see below), whose sum is σ = 4965120. Its totient is φ = 1239840.

The previous prime is 2558639. The next prime is 2558671. The reversal of 2558655 is 5568552.

2558655 is a `hidden beast` number, since 25 + 586 + 55 = 666.

It is an interprime number because it is at equal distance from previous prime (2558639) and next prime (2558671).

It is not a de Polignac number, because 2558655 - 2⁴ = 2558639 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 624 + ... + 2346.

It is an arithmetic number, because the mean of its divisors is an integer number (155160).

2^2558655 is an apocalyptic number.

2558655 is a deficient number, since it is larger than the sum of its proper divisors (2406465).

2558655 is a wasteful number, since it uses less digits than its factorization.

2558655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1748 (or 1742 counting only the distinct ones).

The product of its digits is 60000, while the sum is 36.

The square root of 2558655 is about 1599.5796322784. The cubic root of 2558655 is about 136.7741140617.

The spelling of 2558655 in words is "two million, five hundred fifty-eight thousand, six hundred fifty-five".