2556535 has 8 divisors (see below), whose sum is σ = 3085056. Its totient is φ = 2033760.

The previous prime is 2556523. The next prime is 2556559. The reversal of 2556535 is 5356552.

2556535 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2556535 - 2⁵ = 2556503 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2556497 and 2556506.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 384 + ... + 2293.

It is an arithmetic number, because the mean of its divisors is an integer number (385632).

2^2556535 is an apocalyptic number.

2556535 is a deficient number, since it is larger than the sum of its proper divisors (528521).

2556535 is a wasteful number, since it uses less digits than its factorization.

2556535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2873.

The product of its digits is 22500, while the sum is 31.

The square root of 2556535 is about 1598.9168208509. The cubic root of 2556535 is about 136.7363284228.

It can be divided in two parts, 25565 and 35, that added together give a square (25600 = 160²).

The spelling of 2556535 in words is "two million, five hundred fifty-six thousand, five hundred thirty-five".