54259121197 has 4 divisors (see below), whose sum is σ = 54270867676. Its totient is φ = 54247374720.

The previous prime is 54259121177. The next prime is 54259121207. The reversal of 54259121197 is 79112195245.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79112195245 = 5 ⋅15822439049.

It can be written as a sum of positive squares in 2 ways, for example, as 33463750761 + 20795370436 = 182931^2 + 144206^2 .

It is a cyclic number.

It is not a de Polignac number, because 54259121197 - 2¹¹ = 54259119149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54259121107) 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, 5866308 + ... + 5875549.

It is an arithmetic number, because the mean of its divisors is an integer number (13567716919).

Almost surely, 2^54259121197 is an apocalyptic number.

It is an amenable number.

54259121197 is a deficient number, since it is larger than the sum of its proper divisors (11746479).

54259121197 is a wasteful number, since it uses less digits than its factorization.

54259121197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11746478.

The product of its digits is 226800, while the sum is 46.

The spelling of 54259121197 in words is "fifty-four billion, two hundred fifty-nine million, one hundred twenty-one thousand, one hundred ninety-seven".