55432122123455 has 32 divisors (see below), whose sum is σ = 83145407454720. Its totient is φ = 34466258459520.

The previous prime is 55432122123409. The next prime is 55432122123487.

55432122123455 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55432122123455 - 2²⁸ = 55431853687999 is a prime.

It is a super-2 number, since 2×55432122123455² (a number of 28 digits) contains 22 as substring.

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, 184913909 + ... + 185213438.

It is an arithmetic number, because the mean of its divisors is an integer number (2598293982960).

Almost surely, 2^{55432122123455} is an apocalyptic number.

55432122123455 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55432122123455 is a deficient number, since it is larger than the sum of its proper divisors (27713285331265).

55432122123455 is a wasteful number, since it uses less digits than its factorization.

55432122123455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370127759.

The product of its digits is 1440000, while the sum is 44.

It can be divided in two parts, 5543212 and 2123455, that added together give a palindrome (7666667).

The spelling of 55432122123455 in words is "fifty-five trillion, four hundred thirty-two billion, one hundred twenty-two million, one hundred twenty-three thousand, four hundred fifty-five".