20325570901 has 2 divisors, whose sum is σ = 20325570902. Its totient is φ = 20325570900.

The previous prime is 20325570841. The next prime is 20325570907. The reversal of 20325570901 is 10907552302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18986084100 + 1339486801 = 137790^2 + 36599^2 .

It is a cyclic number.

It is not a de Polignac number, because 20325570901 - 2²⁵ = 20292016469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20325570907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10162785450 + 10162785451.

It is an arithmetic number, because the mean of its divisors is an integer number (10162785451).

Almost surely, 2^20325570901 is an apocalyptic number.

It is an amenable number.

20325570901 is a deficient number, since it is larger than the sum of its proper divisors (1).

20325570901 is an equidigital number, since it uses as much as digits as its factorization.

20325570901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18900, while the sum is 34.

The spelling of 20325570901 in words is "twenty billion, three hundred twenty-five million, five hundred seventy thousand, nine hundred one".