54554450512521 has 16 divisors (see below), whose sum is σ = 73869929612864. Its totient is φ = 35808187981824.

The previous prime is 54554450512489. The next prime is 54554450512531. The reversal of 54554450512521 is 12521505445545.

It is a happy number.

54554450512521 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 54554450512521 - 2⁵ = 54554450512489 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (54554450512531) 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 15 ways as a sum of consecutive naturals, for example, 485623471 + ... + 485735796.

It is an arithmetic number, because the mean of its divisors is an integer number (4616870600804).

Almost surely, 2^{54554450512521} is an apocalyptic number.

It is an amenable number.

54554450512521 is a deficient number, since it is larger than the sum of its proper divisors (19315479100343).

54554450512521 is a wasteful number, since it uses less digits than its factorization.

54554450512521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 971359560.

The product of its (nonzero) digits is 4000000, while the sum is 48.

The spelling of 54554450512521 in words is "fifty-four trillion, five hundred fifty-four billion, four hundred fifty million, five hundred twelve thousand, five hundred twenty-one".