2056523 has 8 divisors (see below), whose sum is σ = 2377440. Its totient is φ = 1742400.

The previous prime is 2056517. The next prime is 2056547. The reversal of 2056523 is 3256502.

Added to its reverse (3256502) it gives a square (5313025 = 2305²).

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2056523 - 2⁶ = 2056459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2056553) 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, 1028 + ... + 2273.

It is an arithmetic number, because the mean of its divisors is an integer number (297180).

2^2056523 is an apocalyptic number.

2056523 is a deficient number, since it is larger than the sum of its proper divisors (320917).

2056523 is an equidigital number, since it uses as much as digits as its factorization.

2056523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3397.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 2056523 is about 1434.0582275487. The cubic root of 2056523 is about 127.1680046566.

Adding to 2056523 its reverse (3256502), we get a square (5313025 = 2305²).

The spelling of 2056523 in words is "two million, fifty-six thousand, five hundred twenty-three".