561523425 has 12 divisors (see below), whose sum is σ = 928385520. Its totient is φ = 299479120.

The previous prime is 561523423. The next prime is 561523453. The reversal of 561523425 is 524325165.

It is not a de Polignac number, because 561523425 - 2¹ = 561523423 is a prime.

It is not an unprimeable number, because it can be changed into a prime (561523421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3743415 + ... + 3743564.

It is an arithmetic number, because the mean of its divisors is an integer number (77365460).

Almost surely, 2^561523425 is an apocalyptic number.

It is an amenable number.

561523425 is a deficient number, since it is larger than the sum of its proper divisors (366862095).

561523425 is a wasteful number, since it uses less digits than its factorization.

561523425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7486992 (or 7486987 counting only the distinct ones).

The product of its digits is 36000, while the sum is 33.

The square root of 561523425 is about 23696.4854989089. The cubic root of 561523425 is about 825.0038200007.

The spelling of 561523425 in words is "five hundred sixty-one million, five hundred twenty-three thousand, four hundred twenty-five".