2558123 has 4 divisors (see below), whose sum is σ = 2561328. Its totient is φ = 2554920.

The previous prime is 2558093. The next prime is 2558131. The reversal of 2558123 is 3218552.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2558123 - 2¹⁰ = 2557099 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2558092 and 2558101.

It is not an unprimeable number, because it can be changed into a prime (2558173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 665 + ... + 2357.

It is an arithmetic number, because the mean of its divisors is an integer number (640332).

2^2558123 is an apocalyptic number.

2558123 is a deficient number, since it is larger than the sum of its proper divisors (3205).

2558123 is a wasteful number, since it uses less digits than its factorization.

2558123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3204.

The product of its digits is 2400, while the sum is 26.

The square root of 2558123 is about 1599.4133299432. The cubic root of 2558123 is about 136.7646339674.

The spelling of 2558123 in words is "two million, five hundred fifty-eight thousand, one hundred twenty-three".