54224570581 has 4 divisors (see below), whose sum is σ = 54229123564. Its totient is φ = 54220017600.

The previous prime is 54224570567. The next prime is 54224570627. The reversal of 54224570581 is 18507542245.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18507542245 = 5 ⋅3701508449.

It can be written as a sum of positive squares in 2 ways, for example, as 15046702225 + 39177868356 = 122665^2 + 197934^2 .

It is a cyclic number.

It is not a de Polignac number, because 54224570581 - 2²⁹ = 53687699669 is a prime.

It is a super-2 number, since 2×54224570581² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54224570531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2258580 + ... + 2282461.

It is an arithmetic number, because the mean of its divisors is an integer number (13557280891).

Almost surely, 2^54224570581 is an apocalyptic number.

It is an amenable number.

54224570581 is a deficient number, since it is larger than the sum of its proper divisors (4552983).

54224570581 is a wasteful number, since it uses less digits than its factorization.

54224570581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4552982.

The product of its (nonzero) digits is 448000, while the sum is 43.

The spelling of 54224570581 in words is "fifty-four billion, two hundred twenty-four million, five hundred seventy thousand, five hundred eighty-one".