20325073499 has 2 divisors, whose sum is σ = 20325073500. Its totient is φ = 20325073498.

The previous prime is 20325073493. The next prime is 20325073501. The reversal of 20325073499 is 99437052302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20325073499 - 2¹² = 20325069403 is a prime.

It is a super-2 number, since 2×20325073499² (a number of 21 digits) contains 22 as substring.

Together with 20325073501, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20325073493) by changing a digit.

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 as a sum of consecutive naturals, namely, 10162536749 + 10162536750.

It is an arithmetic number, because the mean of its divisors is an integer number (10162536750).

Almost surely, 2^20325073499 is an apocalyptic number.

20325073499 is a deficient number, since it is larger than the sum of its proper divisors (1).

20325073499 is an equidigital number, since it uses as much as digits as its factorization.

20325073499 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 408240, while the sum is 44.

The spelling of 20325073499 in words is "twenty billion, three hundred twenty-five million, seventy-three thousand, four hundred ninety-nine".