2556026 has 16 divisors (see below), whose sum is σ = 4209408. Its totient is φ = 1154400.

The previous prime is 2556023. The next prime is 2556041. The reversal of 2556026 is 6206552.

It is a happy number.

It is a nialpdrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 2555986 and 2556004.

It is not an unprimeable number, because it can be changed into a prime (2556023) 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, 4646 + ... + 5166.

It is an arithmetic number, because the mean of its divisors is an integer number (263088).

2^2556026 is an apocalyptic number.

2556026 is a deficient number, since it is larger than the sum of its proper divisors (1653382).

2556026 is a wasteful number, since it uses less digits than its factorization.

2556026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 757.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 2556026 is about 1598.7576426713. The cubic root of 2556026 is about 136.7272531952.

The spelling of 2556026 in words is "two million, five hundred fifty-six thousand, twenty-six".