561424165 has 16 divisors (see below), whose sum is σ = 696775680. Its totient is φ = 434004480.

The previous prime is 561424153. The next prime is 561424187.

561424165 is nontrivially palindromic in base 10.

561424165 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 561424165 - 2¹⁷ = 561293093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 561424165.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3445 + ... + 33685.

It is an arithmetic number, because the mean of its divisors is an integer number (43548480).

Almost surely, 2^561424165 is an apocalyptic number.

It is an amenable number.

561424165 is a deficient number, since it is larger than the sum of its proper divisors (135351515).

561424165 is a wasteful number, since it uses less digits than its factorization.

561424165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30372.

The product of its digits is 28800, while the sum is 34.

The square root of 561424165 is about 23694.3910029357. The cubic root of 561424165 is about 824.9552054038.

The spelling of 561424165 in words is "five hundred sixty-one million, four hundred twenty-four thousand, one hundred sixty-five".