55455566555455 has 32 divisors (see below), whose sum is σ = 73017926549568. Its totient is φ = 40097139763200.

The previous prime is 55455566555369. The next prime is 55455566555483.

55455566555455 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55455566555455 - 2¹⁷ = 55455566424383 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 684249735 + ... + 684330775.

It is an arithmetic number, because the mean of its divisors is an integer number (2281810204674).

Almost surely, 2^{55455566555455} is an apocalyptic number.

55455566555455 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55455566555455 is a deficient number, since it is larger than the sum of its proper divisors (17562359994113).

55455566555455 is a wasteful number, since it uses less digits than its factorization.

55455566555455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153147.

The product of its digits is 5625000000, while the sum is 70.

The spelling of 55455566555455 in words is "fifty-five trillion, four hundred fifty-five billion, five hundred sixty-six million, five hundred fifty-five thousand, four hundred fifty-five".