54828657161 has 4 divisors (see below), whose sum is σ = 56165941524. Its totient is φ = 53491372800.

The previous prime is 54828657083. The next prime is 54828657197. The reversal of 54828657161 is 16175682845.

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 32315455225 + 22513201936 = 179765^2 + 150044^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54828657161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54828657061) 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, 668642120 + ... + 668642201.

It is an arithmetic number, because the mean of its divisors is an integer number (14041485381).

Almost surely, 2^54828657161 is an apocalyptic number.

It is an amenable number.

54828657161 is a deficient number, since it is larger than the sum of its proper divisors (1337284363).

54828657161 is a wasteful number, since it uses less digits than its factorization.

54828657161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1337284362.

The product of its digits is 3225600, while the sum is 53.

The spelling of 54828657161 in words is "fifty-four billion, eight hundred twenty-eight million, six hundred fifty-seven thousand, one hundred sixty-one".