54423550221 has 16 divisors (see below), whose sum is σ = 73597762560. Its totient is φ = 35767283760.

The previous prime is 54423550217. The next prime is 54423550229. The reversal of 54423550221 is 12205532445.

It is a happy number.

It is not a de Polignac number, because 54423550221 - 2² = 54423550217 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54423550229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26175 + ... + 330956.

It is an arithmetic number, because the mean of its divisors is an integer number (4599860160).

Almost surely, 2^54423550221 is an apocalyptic number.

It is an amenable number.

54423550221 is a deficient number, since it is larger than the sum of its proper divisors (19174212339).

54423550221 is a wasteful number, since it uses less digits than its factorization.

54423550221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357856.

The product of its (nonzero) digits is 48000, while the sum is 33.

The spelling of 54423550221 in words is "fifty-four billion, four hundred twenty-three million, five hundred fifty thousand, two hundred twenty-one".