20032523 has 12 divisors (see below), whose sum is σ = 23418792. Its totient is φ = 17085600.

The previous prime is 20032513. The next prime is 20032543. The reversal of 20032523 is 32523002.

It is not a de Polignac number, because 20032523 - 2²² = 15838219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20032513) 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 11 ways as a sum of consecutive naturals, for example, 10223 + ... + 12023.

It is an arithmetic number, because the mean of its divisors is an integer number (1951566).

Almost surely, 2^20032523 is an apocalyptic number.

20032523 is a deficient number, since it is larger than the sum of its proper divisors (3386269).

20032523 is a wasteful number, since it uses less digits than its factorization.

20032523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2042 (or 2035 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 17.

The square root of 20032523 is about 4475.7706598976. The cubic root of 20032523 is about 271.5888169838.

Adding to 20032523 its reverse (32523002), we get a palindrome (52555525).

It can be divided in two parts, 200 and 32523, that added together give a palindrome (32723).

The spelling of 20032523 in words is "twenty million, thirty-two thousand, five hundred twenty-three".