55561011547 has 8 divisors (see below), whose sum is σ = 55768623120. Its totient is φ = 55353592320.

The previous prime is 55561011533. The next prime is 55561011551. The reversal of 55561011547 is 74511016555.

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 55561011547 - 2³⁵ = 21201273179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55561011587) 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, 544272 + ... + 638242.

It is an arithmetic number, because the mean of its divisors is an integer number (6971077890).

Almost surely, 2^55561011547 is an apocalyptic number.

55561011547 is a deficient number, since it is larger than the sum of its proper divisors (207611573).

55561011547 is a wasteful number, since it uses less digits than its factorization.

55561011547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96173.

The product of its (nonzero) digits is 105000, while the sum is 40.

The spelling of 55561011547 in words is "fifty-five billion, five hundred sixty-one million, eleven thousand, five hundred forty-seven".