54919161 has 16 divisors (see below), whose sum is σ = 88758720. Its totient is φ = 33284160.

The previous prime is 54919159. The next prime is 54919181. The reversal of 54919161 is 16191945.

54919161 is a `hidden beast` number, since 5 + 491 + 9 + 161 = 666.

It is not a de Polignac number, because 54919161 - 2¹ = 54919159 is a prime.

It is a super-2 number, since 2×54919161² = 6032228489887842, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (54919121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92160 + ... + 92753.

It is an arithmetic number, because the mean of its divisors is an integer number (5547420).

Almost surely, 2^54919161 is an apocalyptic number.

It is an amenable number.

54919161 is a deficient number, since it is larger than the sum of its proper divisors (33839559).

54919161 is a wasteful number, since it uses less digits than its factorization.

54919161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184933 (or 184927 counting only the distinct ones).

The product of its digits is 9720, while the sum is 36.

The square root of 54919161 is about 7410.7463186915. The cubic root of 54919161 is about 380.1088353999.

The spelling of 54919161 in words is "fifty-four million, nine hundred nineteen thousand, one hundred sixty-one".