561055106031 has 8 divisors (see below), whose sum is σ = 854941113984. Its totient is φ = 320602917720.

The previous prime is 561055106021. The next prime is 561055106077. The reversal of 561055106031 is 130601550165.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 561055106031 - 2⁶ = 561055105967 is a prime.

It is a super-2 number, since 2×561055106031² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 561055105983 and 561055106001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561055106021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13358454885 + ... + 13358454926.

It is an arithmetic number, because the mean of its divisors is an integer number (106867639248).

Almost surely, 2^561055106031 is an apocalyptic number.

561055106031 is a deficient number, since it is larger than the sum of its proper divisors (293886007953).

561055106031 is a wasteful number, since it uses less digits than its factorization.

561055106031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26716909821.

The product of its (nonzero) digits is 13500, while the sum is 33.

Adding to 561055106031 its reverse (130601550165), we get a palindrome (691656656196).

The spelling of 561055106031 in words is "five hundred sixty-one billion, fifty-five million, one hundred six thousand, thirty-one".