55428155182455 has 64 divisors (see below), whose sum is σ = 102445022481408. Its totient is φ = 25291769538560.

The previous prime is 55428155182441. The next prime is 55428155182459.

It is a happy number.

55428155182455 is nontrivially palindromic in base 10.

55428155182455 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55428155182455 - 2²⁰ = 55428154133879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55428155182459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 42916909 + ... + 44189561.

It is an arithmetic number, because the mean of its divisors is an integer number (1600703476272).

Almost surely, 2^{55428155182455} is an apocalyptic number.

55428155182455 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55428155182455 is a deficient number, since it is larger than the sum of its proper divisors (47016867298953).

55428155182455 is a wasteful number, since it uses less digits than its factorization.

55428155182455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1288216.

The product of its digits is 64000000, while the sum is 60.

The spelling of 55428155182455 in words is "fifty-five trillion, four hundred twenty-eight billion, one hundred fifty-five million, one hundred eighty-two thousand, four hundred fifty-five".