561925073 has 2 divisors, whose sum is σ = 561925074. Its totient is φ = 561925072.

The previous prime is 561925051. The next prime is 561925079. The reversal of 561925073 is 370529165.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 406748224 + 155176849 = 20168^2 + 12457^2 .

It is a cyclic number.

It is not a de Polignac number, because 561925073 - 2¹⁰ = 561924049 is a prime.

It is not a weakly prime, because it can be changed into another prime (561925079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280962536 + 280962537.

It is an arithmetic number, because the mean of its divisors is an integer number (280962537).

Almost surely, 2^561925073 is an apocalyptic number.

It is an amenable number.

561925073 is a deficient number, since it is larger than the sum of its proper divisors (1).

561925073 is an equidigital number, since it uses as much as digits as its factorization.

561925073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56700, while the sum is 38.

The square root of 561925073 is about 23704.9588272159. The cubic root of 561925073 is about 825.2004767772.

The spelling of 561925073 in words is "five hundred sixty-one million, nine hundred twenty-five thousand, seventy-three".