561565433 has 16 divisors (see below), whose sum is σ = 660441600. Its totient is φ = 470743680.

The previous prime is 561565409. The next prime is 561565441. The reversal of 561565433 is 334565165.

It is not a de Polignac number, because 561565433 - 2¹⁸ = 561303289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (561565453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204413 + ... + 207141.

It is an arithmetic number, because the mean of its divisors is an integer number (41277600).

Almost surely, 2^561565433 is an apocalyptic number.

It is an amenable number.

561565433 is a deficient number, since it is larger than the sum of its proper divisors (98876167).

561565433 is a wasteful number, since it uses less digits than its factorization.

561565433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4192.

The product of its digits is 162000, while the sum is 38.

The square root of 561565433 is about 23697.3718584994. The cubic root of 561565433 is about 825.0243925448.

The spelling of 561565433 in words is "five hundred sixty-one million, five hundred sixty-five thousand, four hundred thirty-three".