561005006 has 8 divisors (see below), whose sum is σ = 878094864. Its totient is φ = 268306720.

The previous prime is 561004993. The next prime is 561005023. The reversal of 561005006 is 600500165.

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

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6097835 + ... + 6097926.

It is an arithmetic number, because the mean of its divisors is an integer number (109761858).

Almost surely, 2^561005006 is an apocalyptic number.

561005006 is a deficient number, since it is larger than the sum of its proper divisors (317089858).

561005006 is a wasteful number, since it uses less digits than its factorization.

561005006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12195786.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 561005006 is about 23685.5442411611. The cubic root of 561005006 is about 824.7498505752.

The spelling of 561005006 in words is "five hundred sixty-one million, five thousand, six".