561554043 has 8 divisors (see below), whose sum is σ = 756008448. Its totient is φ = 370734504.

The previous prime is 561554011. The next prime is 561554087. The reversal of 561554043 is 340455165.

561554043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 561554043 - 2⁵ = 561554011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 561553995 and 561554013.

It is not an unprimeable number, because it can be changed into a prime (561554003) 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, 908355 + ... + 908972.

It is an arithmetic number, because the mean of its divisors is an integer number (94501056).

Almost surely, 2^561554043 is an apocalyptic number.

561554043 is a deficient number, since it is larger than the sum of its proper divisors (194454405).

561554043 is a wasteful number, since it uses less digits than its factorization.

561554043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1817433.

The product of its (nonzero) digits is 36000, while the sum is 33.

The square root of 561554043 is about 23697.1315352724. The cubic root of 561554043 is about 825.0188146306.

The spelling of 561554043 in words is "five hundred sixty-one million, five hundred fifty-four thousand, forty-three".