20525323 has 16 divisors (see below), whose sum is σ = 25804800. Its totient is φ = 15890976.

The previous prime is 20525311. The next prime is 20525347. The reversal of 20525323 is 32352502.

It is a cyclic number.

It is not a de Polignac number, because 20525323 - 2⁹ = 20524811 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20525294 and 20525303.

It is not an unprimeable number, because it can be changed into a prime (20525303) 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 15 ways as a sum of consecutive naturals, for example, 1878 + ... + 6676.

It is an arithmetic number, because the mean of its divisors is an integer number (1612800).

Almost surely, 2^20525323 is an apocalyptic number.

20525323 is a deficient number, since it is larger than the sum of its proper divisors (5279477).

20525323 is a wasteful number, since it uses less digits than its factorization.

20525323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4866.

The product of its (nonzero) digits is 1800, while the sum is 22.

The square root of 20525323 is about 4530.4881635426. The cubic root of 20525323 is about 273.7978289135.

Adding to 20525323 its reverse (32352502), we get a palindrome (52877825).

The spelling of 20525323 in words is "twenty million, five hundred twenty-five thousand, three hundred twenty-three".