561005662 has 16 divisors (see below), whose sum is σ = 962426880. Its totient is φ = 240255288.

The previous prime is 561005659. The next prime is 561005701. The reversal of 561005662 is 266500165.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6223 + ... + 34069.

It is an arithmetic number, because the mean of its divisors is an integer number (60151680).

Almost surely, 2^561005662 is an apocalyptic number.

561005662 is a deficient number, since it is larger than the sum of its proper divisors (401421218).

561005662 is a wasteful number, since it uses less digits than its factorization.

561005662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29295.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 561005662 is about 23685.5580892661. The cubic root of 561005662 is about 824.7501720433.

The spelling of 561005662 in words is "five hundred sixty-one million, five thousand, six hundred sixty-two".