561602 has 8 divisors (see below), whose sum is σ = 886800. Its totient is φ = 266004.

The previous prime is 561599. The next prime is 561607. The reversal of 561602 is 206165.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (561607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7352 + ... + 7427.

It is an arithmetic number, because the mean of its divisors is an integer number (110850).

2⁵⁶¹⁶⁰² is an apocalyptic number.

561602 is a deficient number, since it is larger than the sum of its proper divisors (325198).

561602 is a wasteful number, since it uses less digits than its factorization.

561602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14800.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 561602 is about 749.4010942079. The cubic root of 561602 is about 82.5042299637.

Adding to 561602 its reverse (206165), we get a palindrome (767767).

The spelling of 561602 in words is "five hundred sixty-one thousand, six hundred two".