20345325 has 96 divisors (see below), whose sum is σ = 45330432. Its totient is φ = 7776000.

The previous prime is 20345293. The next prime is 20345357. The reversal of 20345325 is 52354302.

It is an interprime number because it is at equal distance from previous prime (20345293) and next prime (20345357).

It is not a de Polignac number, because 20345325 - 2⁵ = 20345293 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20345295 and 20345304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 74940 + ... + 75210.

It is an arithmetic number, because the mean of its divisors is an integer number (472192).

Almost surely, 2^20345325 is an apocalyptic number.

20345325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20345325 is an abundant number, since it is smaller than the sum of its proper divisors (24985107).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20345325 is a wasteful number, since it uses less digits than its factorization.

20345325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315 (or 310 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 20345325 is about 4510.5792310966. The cubic root of 20345325 is about 272.9951159077.

Adding to 20345325 its reverse (52354302), we get a palindrome (72699627).

The spelling of 20345325 in words is "twenty million, three hundred forty-five thousand, three hundred twenty-five".