561601695 has 16 divisors (see below), whose sum is σ = 937631232. Its totient is φ = 286498080.

The previous prime is 561601687. The next prime is 561601697. The reversal of 561601695 is 596106165.

It is not a de Polignac number, because 561601695 - 2³ = 561601687 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561601697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 813571 + ... + 814260.

It is an arithmetic number, because the mean of its divisors is an integer number (58601952).

Almost surely, 2^561601695 is an apocalyptic number.

561601695 is a deficient number, since it is larger than the sum of its proper divisors (376029537).

561601695 is a wasteful number, since it uses less digits than its factorization.

561601695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1627862.

The product of its (nonzero) digits is 48600, while the sum is 39.

The square root of 561601695 is about 23698.1369520897. The cubic root of 561601695 is about 825.0421502799.

The spelling of 561601695 in words is "five hundred sixty-one million, six hundred one thousand, six hundred ninety-five".