54215274691 has 4 divisors (see below), whose sum is σ = 54216450400. Its totient is φ = 54214098984.

The previous prime is 54215274689. The next prime is 54215274713. The reversal of 54215274691 is 19647251245.

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

It is a cyclic number.

It is not a de Polignac number, because 54215274691 - 2¹ = 54215274689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54215274791) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 515736 + ... + 611893.

It is an arithmetic number, because the mean of its divisors is an integer number (13554112600).

Almost surely, 2^54215274691 is an apocalyptic number.

54215274691 is a deficient number, since it is larger than the sum of its proper divisors (1175709).

54215274691 is a wasteful number, since it uses less digits than its factorization.

54215274691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1175708.

The product of its digits is 604800, while the sum is 46.

The spelling of 54215274691 in words is "fifty-four billion, two hundred fifteen million, two hundred seventy-four thousand, six hundred ninety-one".