55551433415555 has 32 divisors (see below), whose sum is σ = 83591124830208. Its totient is φ = 34429294627200.

The previous prime is 55551433415497. The next prime is 55551433415561.

55551433415555 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55551433415555 - 2⁸ = 55551433415299 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55551433415555.

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, 416954891 + ... + 417088100.

It is an arithmetic number, because the mean of its divisors is an integer number (2612222650944).

Almost surely, 2^{55551433415555} is an apocalyptic number.

55551433415555 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55551433415555 is a deficient number, since it is larger than the sum of its proper divisors (28039691414653).

55551433415555 is a wasteful number, since it uses less digits than its factorization.

55551433415555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834043187.

The product of its digits is 56250000, while the sum is 56.

The spelling of 55551433415555 in words is "fifty-five trillion, five hundred fifty-one billion, four hundred thirty-three million, four hundred fifteen thousand, five hundred fifty-five".