20325489 has 8 divisors (see below), whose sum is σ = 28694880. Its totient is φ = 12753216.

The previous prime is 20325451. The next prime is 20325493. The reversal of 20325489 is 98452302.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20325489 - 2⁸ = 20325233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20323489) 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 7 ways as a sum of consecutive naturals, for example, 199219 + ... + 199320.

It is an arithmetic number, because the mean of its divisors is an integer number (3586860).

Almost surely, 2^20325489 is an apocalyptic number.

It is an amenable number.

20325489 is a deficient number, since it is larger than the sum of its proper divisors (8369391).

20325489 is a wasteful number, since it uses less digits than its factorization.

20325489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398559.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 20325489 is about 4508.3798642084. The cubic root of 20325489 is about 272.9063667409.

The spelling of 20325489 in words is "twenty million, three hundred twenty-five thousand, four hundred eighty-nine".