20325572999 has 2 divisors, whose sum is σ = 20325573000. Its totient is φ = 20325572998.

The previous prime is 20325572977. The next prime is 20325573017. The reversal of 20325572999 is 99927552302.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20325572999 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20325572999.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20325572299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10162786499 + 10162786500.

It is an arithmetic number, because the mean of its divisors is an integer number (10162786500).

Almost surely, 2^20325572999 is an apocalyptic number.

20325572999 is a deficient number, since it is larger than the sum of its proper divisors (1).

20325572999 is an equidigital number, since it uses as much as digits as its factorization.

20325572999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3061800, while the sum is 53.

The spelling of 20325572999 in words is "twenty billion, three hundred twenty-five million, five hundred seventy-two thousand, nine hundred ninety-nine".