205325226061 has 4 divisors (see below), whose sum is σ = 212405406300. Its totient is φ = 198245045824.

The previous prime is 205325226053. The next prime is 205325226077. The reversal of 205325226061 is 160622523502.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 165327626025 + 39997600036 = 406605^2 + 199994^2 .

It is a cyclic number.

It is not a de Polignac number, because 205325226061 - 2³ = 205325226053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205325226011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3540090076 + ... + 3540090133.

It is an arithmetic number, because the mean of its divisors is an integer number (53101351575).

Almost surely, 2^205325226061 is an apocalyptic number.

It is an amenable number.

205325226061 is a deficient number, since it is larger than the sum of its proper divisors (7080180239).

205325226061 is an equidigital number, since it uses as much as digits as its factorization.

205325226061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7080180238.

The product of its (nonzero) digits is 43200, while the sum is 34.

Adding to 205325226061 its reverse (160622523502), we get a palindrome (365947749563).

The spelling of 205325226061 in words is "two hundred five billion, three hundred twenty-five million, two hundred twenty-six thousand, sixty-one".