55605145591 has 8 divisors (see below), whose sum is σ = 55797908400. Its totient is φ = 55412639040.

The previous prime is 55605145573. The next prime is 55605145597. The reversal of 55605145591 is 19554150655.

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 55605145591 - 2¹¹ = 55605143543 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 (55605145597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 375876 + ... + 502486.

It is an arithmetic number, because the mean of its divisors is an integer number (6974738550).

Almost surely, 2^55605145591 is an apocalyptic number.

55605145591 is a deficient number, since it is larger than the sum of its proper divisors (192762809).

55605145591 is a wasteful number, since it uses less digits than its factorization.

55605145591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128129.

The product of its (nonzero) digits is 675000, while the sum is 46.

The spelling of 55605145591 in words is "fifty-five billion, six hundred five million, one hundred forty-five thousand, five hundred ninety-one".