561602215 has 8 divisors (see below), whose sum is σ = 690360048. Its totient is φ = 438323520.

The previous prime is 561602207. The next prime is 561602219. The reversal of 561602215 is 512206165.

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

It is not a de Polignac number, because 561602215 - 2³ = 561602207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561602219) 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 7 ways as a sum of consecutive naturals, for example, 1369557 + ... + 1369966.

It is an arithmetic number, because the mean of its divisors is an integer number (86295006).

Almost surely, 2^561602215 is an apocalyptic number.

561602215 is a deficient number, since it is larger than the sum of its proper divisors (128757833).

561602215 is a wasteful number, since it uses less digits than its factorization.

561602215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2739569.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 561602215 is about 23698.1479234138. The cubic root of 561602215 is about 825.0424049217.

The spelling of 561602215 in words is "five hundred sixty-one million, six hundred two thousand, two hundred fifteen".