55421224467 has 32 divisors (see below), whose sum is σ = 84854415360. Its totient is φ = 31518305280.

The previous prime is 55421224451. The next prime is 55421224471. The reversal of 55421224467 is 76442212455.

It is not a de Polignac number, because 55421224467 - 2⁴ = 55421224451 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55421224477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13323534 + ... + 13327692.

It is an arithmetic number, because the mean of its divisors is an integer number (2651700480).

Almost surely, 2^55421224467 is an apocalyptic number.

55421224467 is a deficient number, since it is larger than the sum of its proper divisors (29433190893).

55421224467 is a wasteful number, since it uses less digits than its factorization.

55421224467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7043.

The product of its digits is 537600, while the sum is 42.

The spelling of 55421224467 in words is "fifty-five billion, four hundred twenty-one million, two hundred twenty-four thousand, four hundred sixty-seven".