20532104 has 8 divisors (see below), whose sum is σ = 38497710. Its totient is φ = 10266048.

The previous prime is 20532101. The next prime is 20532119. The reversal of 20532104 is 40123502.

It can be written as a sum of positive squares in only one way, i.e., 19096900 + 1435204 = 4370^2 + 1198^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (20532101) 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 as a sum of consecutive naturals, namely, 1283249 + ... + 1283264.

Almost surely, 2^20532104 is an apocalyptic number.

It is an amenable number.

20532104 is a deficient number, since it is larger than the sum of its proper divisors (17965606).

20532104 is a wasteful number, since it uses less digits than its factorization.

20532104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2566519 (or 2566515 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 20532104 is about 4531.2364758419. The cubic root of 20532104 is about 273.8279773413.

Adding to 20532104 its reverse (40123502), we get a palindrome (60655606).

The spelling of 20532104 in words is "twenty million, five hundred thirty-two thousand, one hundred four".