2056493 has 4 divisors (see below), whose sum is σ = 2090268. Its totient is φ = 2022720.

The previous prime is 2056489. The next prime is 2056501. The reversal of 2056493 is 3946502.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 157609 + 1898884 = 397^2 + 1378^2 .

It is a cyclic number.

It is not a de Polignac number, because 2056493 - 2² = 2056489 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2056403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16796 + ... + 16917.

It is an arithmetic number, because the mean of its divisors is an integer number (522567).

2^2056493 is an apocalyptic number.

It is an amenable number.

2056493 is a deficient number, since it is larger than the sum of its proper divisors (33775).

2056493 is an equidigital number, since it uses as much as digits as its factorization.

2056493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33774.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 2056493 is about 1434.0477676842. The cubic root of 2056493 is about 127.1673862894.

The spelling of 2056493 in words is "two million, fifty-six thousand, four hundred ninety-three".