2558409 has 16 divisors (see below), whose sum is σ = 4033920. Its totient is φ = 1411200.

The previous prime is 2558377. The next prime is 2558411. The reversal of 2558409 is 9048552.

It is not a de Polignac number, because 2558409 - 2⁵ = 2558377 is a prime.

It is a super-2 number, since 2×2558409² = 13090913222562, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2558409.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2558419) 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, 1492 + ... + 2709.

It is an arithmetic number, because the mean of its divisors is an integer number (252120).

2^2558409 is an apocalyptic number.

2558409 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

2558409 is a deficient number, since it is larger than the sum of its proper divisors (1475511).

2558409 is a wasteful number, since it uses less digits than its factorization.

2558409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4240.

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 2558409 is about 1599.5027352274. The cubic root of 2558409 is about 136.7697305724.

The spelling of 2558409 in words is "two million, five hundred fifty-eight thousand, four hundred nine".