20597063 has 4 divisors (see below), whose sum is σ = 20620680. Its totient is φ = 20573448.

The previous prime is 20597041. The next prime is 20597069. The reversal of 20597063 is 36079502.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20597063 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 (20597069) 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, 10448 + ... + 12261.

It is an arithmetic number, because the mean of its divisors is an integer number (5155170).

Almost surely, 2^20597063 is an apocalyptic number.

20597063 is a deficient number, since it is larger than the sum of its proper divisors (23617).

20597063 is an equidigital number, since it uses as much as digits as its factorization.

20597063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23616.

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 20597063 is about 4538.3987264232. The cubic root of 20597063 is about 274.1164502263.

The spelling of 20597063 in words is "twenty million, five hundred ninety-seven thousand, sixty-three".