20532329 has 4 divisors (see below), whose sum is σ = 20731776. Its totient is φ = 20332884.

The previous prime is 20532313. The next prime is 20532341. The reversal of 20532329 is 92323502.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20532329 - 2⁴ = 20532313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20532298 and 20532307.

It is not an unprimeable number, because it can be changed into a prime (20534329) 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, 99569 + ... + 99774.

It is an arithmetic number, because the mean of its divisors is an integer number (5182944).

Almost surely, 2^20532329 is an apocalyptic number.

It is an amenable number.

20532329 is a deficient number, since it is larger than the sum of its proper divisors (199447).

20532329 is a wasteful number, since it uses less digits than its factorization.

20532329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199446.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 20532329 is about 4531.2613034342. The cubic root of 20532329 is about 273.8289775809.

The spelling of 20532329 in words is "twenty million, five hundred thirty-two thousand, three hundred twenty-nine".