20345032403325 has 288 divisors, whose sum is σ = 43028329344000. Its totient is φ = 9184629242880.

The previous prime is 20345032403309. The next prime is 20345032403327. The reversal of 20345032403325 is 52330423054302.

It is a happy number.

20345032403325 is a `hidden beast` number, since 2 + 0 + 3 + 4 + 5 + 0 + 324 + 0 + 3 + 325 = 666.

It is not a de Polignac number, because 20345032403325 - 2⁴ = 20345032403309 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20345032403325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20345032403327) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 2632975612 + ... + 2632983338.

Almost surely, 2^{20345032403325} is an apocalyptic number.

20345032403325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20345032403325 is an abundant number, since it is smaller than the sum of its proper divisors (22683296940675).

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

20345032403325 is a wasteful number, since it uses less digits than its factorization.

20345032403325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8186 (or 8164 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 36.

Adding to 20345032403325 its reverse (52330423054302), we get a palindrome (72675455457627).

The spelling of 20345032403325 in words is "twenty trillion, three hundred forty-five billion, thirty-two million, four hundred three thousand, three hundred twenty-five".