2056513 has 4 divisors (see below), whose sum is σ = 2060208. Its totient is φ = 2052820.

The previous prime is 2056501. The next prime is 2056517. The reversal of 2056513 is 3156502.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2056513 - 2⁹ = 2056001 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2056517) 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, 823 + ... + 2188.

It is an arithmetic number, because the mean of its divisors is an integer number (515052).

2^2056513 is an apocalyptic number.

It is an amenable number.

2056513 is a deficient number, since it is larger than the sum of its proper divisors (3695).

2056513 is an equidigital number, since it uses as much as digits as its factorization.

2056513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3694.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 2056513 is about 1434.0547409356. The cubic root of 2056513 is about 127.1677985349.

The spelling of 2056513 in words is "two million, fifty-six thousand, five hundred thirteen".