561562002 has 12 divisors (see below), whose sum is σ = 1216717710. Its totient is φ = 187187328.

The previous prime is 561561991. The next prime is 561562007. The reversal of 561562002 is 200265165.

It can be written as a sum of positive squares in only one way, i.e., 524364201 + 37197801 = 22899^2 + 6099^2 .

It is not an unprimeable number, because it can be changed into a prime (561562007) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15598927 + ... + 15598962.

Almost surely, 2^561562002 is an apocalyptic number.

561562002 is an abundant number, since it is smaller than the sum of its proper divisors (655155708).

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

561562002 is a wasteful number, since it uses less digits than its factorization.

561562002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31197897 (or 31197894 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 561562002 is about 23697.2994663949. The cubic root of 561562002 is about 825.0227123224.

The spelling of 561562002 in words is "five hundred sixty-one million, five hundred sixty-two thousand, two".