55543475554 has 16 divisors (see below), whose sum is σ = 95787554688. Its totient is φ = 23661804672.

The previous prime is 55543475521. The next prime is 55543475557. The reversal of 55543475554 is 45557434555.

It is not an unprimeable number, because it can be changed into a prime (55543475557) 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, 11876079 + ... + 11880754.

It is an arithmetic number, because the mean of its divisors is an integer number (5986722168).

Almost surely, 2^55543475554 is an apocalyptic number.

55543475554 is a deficient number, since it is larger than the sum of its proper divisors (40244079134).

55543475554 is a wasteful number, since it uses less digits than its factorization.

55543475554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23757009.

The product of its digits is 21000000, while the sum is 52.

The spelling of 55543475554 in words is "fifty-five billion, five hundred forty-three million, four hundred seventy-five thousand, five hundred fifty-four".