55161404 has 6 divisors (see below), whose sum is σ = 96532464. Its totient is φ = 27580700.

The previous prime is 55161377. The next prime is 55161419. The reversal of 55161404 is 40416155.

55161404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 6895172 + ... + 6895179.

It is an arithmetic number, because the mean of its divisors is an integer number (16088744).

Almost surely, 2^55161404 is an apocalyptic number.

It is an amenable number.

55161404 is a deficient number, since it is larger than the sum of its proper divisors (41371060).

55161404 is a wasteful number, since it uses less digits than its factorization.

55161404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13790355 (or 13790353 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 55161404 is about 7427.0723707259. The cubic root of 55161404 is about 380.6668898832. Note that the first 3 decimals are identical.

Adding to 55161404 its reverse (40416155), we get a palindrome (95577559).

The spelling of 55161404 in words is "fifty-five million, one hundred sixty-one thousand, four hundred four".