20596013 has 8 divisors (see below), whose sum is σ = 21219960. Its totient is φ = 19975680.

The previous prime is 20596007. The next prime is 20596033. The reversal of 20596013 is 31069502.

It can be written as a sum of positive squares in 4 ways, for example, as 8219689 + 12376324 = 2867^2 + 3518^2 .

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 20596013 - 2¹⁰ = 20594989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20596033) 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, 14453 + ... + 15813.

It is an arithmetic number, because the mean of its divisors is an integer number (2652495).

Almost surely, 2^20596013 is an apocalyptic number.

It is an amenable number.

20596013 is a deficient number, since it is larger than the sum of its proper divisors (623947).

20596013 is a wasteful number, since it uses less digits than its factorization.

20596013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1807.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 20596013 is about 4538.2830453818. The cubic root of 20596013 is about 274.1117921647. Note that the first 3 decimals are identical.

The spelling of 20596013 in words is "twenty million, five hundred ninety-six thousand, thirteen".