20596231 has 4 divisors (see below), whose sum is σ = 21807792. Its totient is φ = 19384672.

The previous prime is 20596217. The next prime is 20596241. The reversal of 20596231 is 13269502.

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

It is a cyclic number.

It is not a de Polignac number, because 20596231 - 2²³ = 12207623 is a prime.

It is a super-2 number, since 2×20596231² = 848409462810722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20596231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20596211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 605755 + ... + 605788.

It is an arithmetic number, because the mean of its divisors is an integer number (5451948).

Almost surely, 2^20596231 is an apocalyptic number.

20596231 is a deficient number, since it is larger than the sum of its proper divisors (1211561).

20596231 is a wasteful number, since it uses less digits than its factorization.

20596231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1211560.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 20596231 is about 4538.3070632120. The cubic root of 20596231 is about 274.1127592800.

The spelling of 20596231 in words is "twenty million, five hundred ninety-six thousand, two hundred thirty-one".