54865115253161 has 4 divisors (see below), whose sum is σ = 54954617888772. Its totient is φ = 54775612617552.

The previous prime is 54865115253121. The next prime is 54865115253229. The reversal of 54865115253161 is 16135251156845.

54865115253161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 6393721873561 + 48471393379600 = 2528581^2 + 6962140^2 .

It is a cyclic number.

It is not a de Polignac number, because 54865115253161 - 2¹⁸ = 54865114991017 is a prime.

It is a super-2 number, since 2×54865115253161² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54865115253121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44751316886 + ... + 44751318111.

It is an arithmetic number, because the mean of its divisors is an integer number (13738654472193).

Almost surely, 2^{54865115253161} is an apocalyptic number.

It is an amenable number.

54865115253161 is a deficient number, since it is larger than the sum of its proper divisors (89502635611).

54865115253161 is an equidigital number, since it uses as much as digits as its factorization.

54865115253161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89502635610.

The product of its digits is 4320000, while the sum is 53.

The spelling of 54865115253161 in words is "fifty-four trillion, eight hundred sixty-five billion, one hundred fifteen million, two hundred fifty-three thousand, one hundred sixty-one".