2558173 has 2 divisors, whose sum is σ = 2558174. Its totient is φ = 2558172.

The previous prime is 2558137. The next prime is 2558189. The reversal of 2558173 is 3718552.

2558173 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (2558137) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1352569 + 1205604 = 1163^2 + 1098^2 .

It is a cyclic number.

It is not a de Polignac number, because 2558173 - 2¹⁷ = 2427101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2558473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1279086 + 1279087.

It is an arithmetic number, because the mean of its divisors is an integer number (1279087).

2^2558173 is an apocalyptic number.

It is an amenable number.

2558173 is a deficient number, since it is larger than the sum of its proper divisors (1).

2558173 is an equidigital number, since it uses as much as digits as its factorization.

2558173 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8400, while the sum is 31.

The square root of 2558173 is about 1599.4289605981. The cubic root of 2558173 is about 136.7655250097.

The spelling of 2558173 in words is "two million, five hundred fifty-eight thousand, one hundred seventy-three".