5204225561 has 2 divisors, whose sum is σ = 5204225562. Its totient is φ = 5204225560.

The previous prime is 5204225539. The next prime is 5204225563. The reversal of 5204225561 is 1655224025.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4266702400 + 937523161 = 65320^2 + 30619^2 .

It is a cyclic number.

It is not a de Polignac number, because 5204225561 - 2⁶ = 5204225497 is a prime.

Together with 5204225563, 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 (5204225563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2602112780 + 2602112781.

It is an arithmetic number, because the mean of its divisors is an integer number (2602112781).

Almost surely, 2^5204225561 is an apocalyptic number.

It is an amenable number.

5204225561 is a deficient number, since it is larger than the sum of its proper divisors (1).

5204225561 is an equidigital number, since it uses as much as digits as its factorization.

5204225561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 5204225561 is about 72140.3185534968. The cubic root of 5204225561 is about 1732.9473587782.

Adding to 5204225561 its reverse (1655224025), we get a palindrome (6859449586).

The spelling of 5204225561 in words is "five billion, two hundred four million, two hundred twenty-five thousand, five hundred sixty-one".