55661511043 has 8 divisors (see below), whose sum is σ = 57094044480. Its totient is φ = 54239321280.

The previous prime is 55661511029. The next prime is 55661511049. The reversal of 55661511043 is 34011516655.

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

It is a cyclic number.

It is not a de Polignac number, because 55661511043 - 2⁵ = 55661511011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55661510993 and 55661511011.

It is not an unprimeable number, because it can be changed into a prime (55661511049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2575018 + ... + 2596543.

It is an arithmetic number, because the mean of its divisors is an integer number (7136755560).

Almost surely, 2^55661511043 is an apocalyptic number.

55661511043 is a deficient number, since it is larger than the sum of its proper divisors (1432533437).

55661511043 is a wasteful number, since it uses less digits than its factorization.

55661511043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5171837.

The product of its (nonzero) digits is 54000, while the sum is 37.

The spelling of 55661511043 in words is "fifty-five billion, six hundred sixty-one million, five hundred eleven thousand, forty-three".