561056097 has 16 divisors (see below), whose sum is σ = 855843840. Its totient is φ = 320265552.

The previous prime is 561056087. The next prime is 561056099. The reversal of 561056097 is 790650165.

It is not a de Polignac number, because 561056097 - 2⁷ = 561055969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (561056099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7054 + ... + 34232.

It is an arithmetic number, because the mean of its divisors is an integer number (53490240).

Almost surely, 2^561056097 is an apocalyptic number.

It is an amenable number.

561056097 is a deficient number, since it is larger than the sum of its proper divisors (294787743).

561056097 is a wasteful number, since it uses less digits than its factorization.

561056097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28172.

The product of its (nonzero) digits is 56700, while the sum is 39.

The square root of 561056097 is about 23686.6227436501. The cubic root of 561056097 is about 824.7748866058.

The spelling of 561056097 in words is "five hundred sixty-one million, fifty-six thousand, ninety-seven".