2656522 has 16 divisors (see below), whose sum is σ = 4603392. Its totient is φ = 1136320.

The previous prime is 2656501. The next prime is 2656529. The reversal of 2656522 is 2256562.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2⁵ + 6² + 5⁸ + 6⁷ + 5⁹ + 2¹⁴ + 2¹⁴ .

It is not an unprimeable number, because it can be changed into a prime (2656529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3178 + ... + 3925.

It is an arithmetic number, because the mean of its divisors is an integer number (287712).

2^2656522 is an apocalyptic number.

2656522 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2656522 is a deficient number, since it is larger than the sum of its proper divisors (1946870).

2656522 is a wasteful number, since it uses less digits than its factorization.

2656522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7133.

The product of its digits is 7200, while the sum is 28.

The square root of 2656522 is about 1629.8840449553. The cubic root of 2656522 is about 138.4961834326.

The spelling of 2656522 in words is "two million, six hundred fifty-six thousand, five hundred twenty-two".