2056355 has 16 divisors (see below), whose sum is σ = 2890944. Its totient is φ = 1374720.

The previous prime is 2056343. The next prime is 2056357. The reversal of 2056355 is 5536502.

It is a Cunningham number, because it is equal to 1434²-1.

It is not a de Polignac number, because 2056355 - 2⁴ = 2056339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2056357) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 719 + ... + 2151.

It is an arithmetic number, because the mean of its divisors is an integer number (180684).

2^2056355 is an apocalyptic number.

2056355 is a deficient number, since it is larger than the sum of its proper divisors (834589).

2056355 is a wasteful number, since it uses less digits than its factorization.

2056355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1486.

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 2056355 is about 1433.9996513249. Note that the first 3 decimals coincide. The cubic root of 2056355 is about 127.1645417232.

The spelling of 2056355 in words is "two million, fifty-six thousand, three hundred fifty-five".