561663554003053 has 4 divisors (see below), whose sum is σ = 561862796132160. Its totient is φ = 561464311873948.

The previous prime is 561663554003047. The next prime is 561663554003081. The reversal of 561663554003053 is 350300455366165.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 561663554003053 - 2⁹ = 561663554002541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561663554003653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99621060325 + ... + 99621065962.

It is an arithmetic number, because the mean of its divisors is an integer number (140465699033040).

Almost surely, 2^{561663554003053} is an apocalyptic number.

It is an amenable number.

561663554003053 is a deficient number, since it is larger than the sum of its proper divisors (199242129107).

561663554003053 is a wasteful number, since it uses less digits than its factorization.

561663554003053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199242129106.

The product of its (nonzero) digits is 14580000, while the sum is 52.

The spelling of 561663554003053 in words is "five hundred sixty-one trillion, six hundred sixty-three billion, five hundred fifty-four million, three thousand, fifty-three".