55161434 has 16 divisors (see below), whose sum is σ = 84480000. Its totient is φ = 27007344.

The previous prime is 55161419. The next prime is 55161437. The reversal of 55161434 is 43416155.

It is a happy number.

55161434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 55161397 and 55161406.

It is not an unprimeable number, because it can be changed into a prime (55161437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18692 + ... + 21440.

It is an arithmetic number, because the mean of its divisors is an integer number (5280000).

Almost surely, 2^55161434 is an apocalyptic number.

55161434 is a deficient number, since it is larger than the sum of its proper divisors (29318566).

55161434 is a wasteful number, since it uses less digits than its factorization.

55161434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2957.

The product of its digits is 7200, while the sum is 29.

The square root of 55161434 is about 7427.0743903639. The cubic root of 55161434 is about 380.6669588928. Note that the first 3 decimals are identical.

Adding to 55161434 its reverse (43416155), we get a palindrome (98577589).

The spelling of 55161434 in words is "fifty-five million, one hundred sixty-one thousand, four hundred thirty-four".