2556258 has 16 divisors (see below), whose sum is σ = 5171040. Its totient is φ = 842336.

The previous prime is 2556233. The next prime is 2556259. The reversal of 2556258 is 8526552.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2556259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1860 + ... + 2927.

It is an arithmetic number, because the mean of its divisors is an integer number (323190).

2^2556258 is an apocalyptic number.

2556258 is an abundant number, since it is smaller than the sum of its proper divisors (2614782).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2556258 is a wasteful number, since it uses less digits than its factorization.

2556258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4881.

The product of its digits is 24000, while the sum is 33.

The square root of 2556258 is about 1598.8301973631. The cubic root of 2556258 is about 136.7313897941.

The spelling of 2556258 in words is "two million, five hundred fifty-six thousand, two hundred fifty-eight".