561528105 has 32 divisors (see below), whose sum is σ = 957744000. Its totient is φ = 279954432.

The previous prime is 561528103. The next prime is 561528127. The reversal of 561528105 is 501825165.

It is not a de Polignac number, because 561528105 - 2¹ = 561528103 is a prime.

It is not an unprimeable number, because it can be changed into a prime (561528101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30606 + ... + 45384.

It is an arithmetic number, because the mean of its divisors is an integer number (29929500).

Almost surely, 2^561528105 is an apocalyptic number.

It is an amenable number.

561528105 is a deficient number, since it is larger than the sum of its proper divisors (396215895).

561528105 is a wasteful number, since it uses less digits than its factorization.

561528105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14953.

The product of its (nonzero) digits is 12000, while the sum is 33.

The square root of 561528105 is about 23696.5842475239. The cubic root of 561528105 is about 825.0061119841.

The spelling of 561528105 in words is "five hundred sixty-one million, five hundred twenty-eight thousand, one hundred five".