55005555005547 has 16 divisors (see below), whose sum is σ = 74543680089600. Its totient is φ = 36068910170400.

The previous prime is 55005555005539. The next prime is 55005555005567. The reversal of 55005555005547 is 74550055550055.

It is not a de Polignac number, because 55005555005547 - 2³ = 55005555005539 is a prime.

It is a super-2 number, since 2×55005555005547² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55005555005547.

It is not an unprimeable number, because it can be changed into a prime (55005555005567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21439704 + ... + 23867802.

It is an arithmetic number, because the mean of its divisors is an integer number (4658980005600).

Almost surely, 2^{55005555005547} is an apocalyptic number.

55005555005547 is a deficient number, since it is larger than the sum of its proper divisors (19538125084053).

55005555005547 is a wasteful number, since it uses less digits than its factorization.

55005555005547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2551954.

The product of its (nonzero) digits is 10937500, while the sum is 51.

The spelling of 55005555005547 in words is "fifty-five trillion, five billion, five hundred fifty-five million, five thousand, five hundred forty-seven".