54219891245 has 16 divisors (see below), whose sum is σ = 70276730160. Its totient is φ = 39920477184.

The previous prime is 54219891241. The next prime is 54219891259.

54219891245 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 8 ways, for example, as 8219689 + 54211671556 = 2867^2 + 232834^2 .

It is a cyclic number.

It is not a de Polignac number, because 54219891245 - 2² = 54219891241 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 54219891193 and 54219891202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54219891241) 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 15 ways as a sum of consecutive naturals, for example, 1215710 + ... + 1259519.

It is an arithmetic number, because the mean of its divisors is an integer number (4392295635).

Almost surely, 2^54219891245 is an apocalyptic number.

It is an amenable number.

54219891245 is a deficient number, since it is larger than the sum of its proper divisors (16056838915).

54219891245 is a wasteful number, since it uses less digits than its factorization.

54219891245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2475584.

The product of its digits is 1036800, while the sum is 50.

The spelling of 54219891245 in words is "fifty-four billion, two hundred nineteen million, eight hundred ninety-one thousand, two hundred forty-five".