20512302325 has 6 divisors (see below), whose sum is σ = 25435254914. Its totient is φ = 16409841840.

The previous prime is 20512302281. The next prime is 20512302331. The reversal of 20512302325 is 52320321502.

It can be written as a sum of positive squares in 3 ways, for example, as 3693843729 + 16818458596 = 60777^2 + 129686^2 .

It is not a de Polignac number, because 20512302325 - 2¹³ = 20512294133 is a prime.

It is a super-3 number, since 3×20512302325³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 820492093 = 20512302325 / (2 + 0 + 5 + 1 + 2 + 3 + 0 + 2 + 3 + 2 + 5).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20512302325.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 410246022 + ... + 410246071.

Almost surely, 2^20512302325 is an apocalyptic number.

20512302325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20512302325 is a deficient number, since it is larger than the sum of its proper divisors (4922952589).

20512302325 is an equidigital number, since it uses as much as digits as its factorization.

20512302325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 820492103 (or 820492098 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

Adding to 20512302325 its reverse (52320321502), we get a palindrome (72832623827).

The spelling of 20512302325 in words is "twenty billion, five hundred twelve million, three hundred two thousand, three hundred twenty-five".