561268602 has 20 divisors (see below), whose sum is σ = 1257657786. Its totient is φ = 187089480.

The previous prime is 561268601. The next prime is 561268613. The reversal of 561268602 is 206862165.

561268602 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 406788561 + 154480041 = 20169^2 + 12429^2 .

It is not an unprimeable number, because it can be changed into a prime (561268601) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1732149 + ... + 1732472.

Almost surely, 2^561268602 is an apocalyptic number.

561268602 is an abundant number, since it is smaller than the sum of its proper divisors (696389184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

561268602 is a wasteful number, since it uses less digits than its factorization.

561268602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3464635 (or 3464626 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 561268602 is about 23691.1080787708. The cubic root of 561268602 is about 824.8790037429.

The spelling of 561268602 in words is "five hundred sixty-one million, two hundred sixty-eight thousand, six hundred two".