54487278445 has 4 divisors (see below), whose sum is σ = 65384734140. Its totient is φ = 43589822752.

The previous prime is 54487278437. The next prime is 54487278479.

54487278445 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 40803192004 + 13684086441 = 201998^2 + 116979^2 .

It is a cyclic number.

It is not a de Polignac number, because 54487278445 - 2³ = 54487278437 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54487278445.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5448727840 + ... + 5448727849.

It is an arithmetic number, because the mean of its divisors is an integer number (16346183535).

Almost surely, 2^54487278445 is an apocalyptic number.

It is an amenable number.

54487278445 is a deficient number, since it is larger than the sum of its proper divisors (10897455695).

54487278445 is a wasteful number, since it uses less digits than its factorization.

54487278445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10897455694.

The product of its digits is 40140800, while the sum is 58.

The spelling of 54487278445 in words is "fifty-four billion, four hundred eighty-seven million, two hundred seventy-eight thousand, four hundred forty-five".