55443477434455 has 32 divisors (see below), whose sum is σ = 73019492195328. Its totient is φ = 40078702156800.

The previous prime is 55443477434417. The next prime is 55443477434467.

55443477434455 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55443477434455 - 2⁹ = 55443477433943 is a prime.

It is a super-2 number, since 2×55443477434455² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

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, 162964854 + ... + 163304716.

It is an arithmetic number, because the mean of its divisors is an integer number (2281859131104).

Almost surely, 2^{55443477434455} is an apocalyptic number.

55443477434455 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55443477434455 is a deficient number, since it is larger than the sum of its proper divisors (17576014760873).

55443477434455 is a wasteful number, since it uses less digits than its factorization.

55443477434455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357807.

The product of its digits is 1128960000, while the sum is 64.

The spelling of 55443477434455 in words is "fifty-five trillion, four hundred forty-three billion, four hundred seventy-seven million, four hundred thirty-four thousand, four hundred fifty-five".