20560329 has 6 divisors (see below), whose sum is σ = 29698266. Its totient is φ = 13706880.

The previous prime is 20560301. The next prime is 20560339. The reversal of 20560329 is 92306502.

It can be written as a sum of positive squares in only one way, i.e., 19184400 + 1375929 = 4380^2 + 1173^2 .

It is not a de Polignac number, because 20560329 - 2¹³ = 20552137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20560339) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1142232 + ... + 1142249.

It is an arithmetic number, because the mean of its divisors is an integer number (4949711).

Almost surely, 2^20560329 is an apocalyptic number.

It is an amenable number.

20560329 is a deficient number, since it is larger than the sum of its proper divisors (9137937).

20560329 is a wasteful number, since it uses less digits than its factorization.

20560329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2284487 (or 2284484 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 20560329 is about 4534.3498982765. The cubic root of 20560329 is about 273.9533948474.

The spelling of 20560329 in words is "twenty million, five hundred sixty thousand, three hundred twenty-nine".