55344682003561 has 4 divisors (see below), whose sum is σ = 55345320120832. Its totient is φ = 55344043886292.

The previous prime is 55344682003547. The next prime is 55344682003619. The reversal of 55344682003561 is 16530028644355.

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 55344682003561 - 2³³ = 55336092068969 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55344682003499 and 55344682003508.

It is not an unprimeable number, because it can be changed into a prime (55344682000561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 318928521 + ... + 319102006.

It is an arithmetic number, because the mean of its divisors is an integer number (13836330030208).

Almost surely, 2^{55344682003561} is an apocalyptic number.

It is an amenable number.

55344682003561 is a deficient number, since it is larger than the sum of its proper divisors (638117271).

55344682003561 is an equidigital number, since it uses as much as digits as its factorization.

55344682003561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638117270.

The product of its (nonzero) digits is 10368000, while the sum is 52.

The spelling of 55344682003561 in words is "fifty-five trillion, three hundred forty-four billion, six hundred eighty-two million, three thousand, five hundred sixty-one".