20083523 has 4 divisors (see below), whose sum is σ = 20510880. Its totient is φ = 19656168.

The previous prime is 20083519. The next prime is 20083549. The reversal of 20083523 is 32538002.

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 20083523 - 2² = 20083519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20083223) 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, 213608 + ... + 213701.

It is an arithmetic number, because the mean of its divisors is an integer number (5127720).

Almost surely, 2^20083523 is an apocalyptic number.

20083523 is a deficient number, since it is larger than the sum of its proper divisors (427357).

20083523 is an equidigital number, since it uses as much as digits as its factorization.

20083523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427356.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 20083523 is about 4481.4643812040. The cubic root of 20083523 is about 271.8190973801.

The spelling of 20083523 in words is "twenty million, eighty-three thousand, five hundred twenty-three".