561006015 has 48 divisors (see below), whose sum is σ = 946127520. Its totient is φ = 283494400.

The previous prime is 561005987. The next prime is 561006049. The reversal of 561006015 is 510600165.

561006015 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 561006015 - 2⁸ = 561005759 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4964599 + ... + 4964711.

It is an arithmetic number, because the mean of its divisors is an integer number (19710990).

Almost surely, 2^561006015 is an apocalyptic number.

561006015 is a deficient number, since it is larger than the sum of its proper divisors (385121505).

561006015 is a wasteful number, since it uses less digits than its factorization.

561006015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364 (or 251 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 561006015 is about 23685.5655410632. The cubic root of 561006015 is about 824.7503450283.

It can be divided in two parts, 56 and 1006015, that added together give a triangular number (1006071 = T₁₄₁₈).

The spelling of 561006015 in words is "five hundred sixty-one million, six thousand, fifteen".