55500056566 has 8 divisors (see below), whose sum is σ = 86120777520. Its totient is φ = 26793130728.

The previous prime is 55500056561. The next prime is 55500056567. The reversal of 55500056566 is 66565000555.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55500056561) 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, 478448706 + ... + 478448821.

It is an arithmetic number, because the mean of its divisors is an integer number (10765097190).

Almost surely, 2^55500056566 is an apocalyptic number.

55500056566 is a deficient number, since it is larger than the sum of its proper divisors (30620720954).

55500056566 is a wasteful number, since it uses less digits than its factorization.

55500056566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 956897558.

The product of its (nonzero) digits is 675000, while the sum is 43.

The spelling of 55500056566 in words is "fifty-five billion, five hundred million, fifty-six thousand, five hundred sixty-six".