55400104 has 16 divisors (see below), whose sum is σ = 104188500. Its totient is φ = 27616512.

The previous prime is 55400099. The next prime is 55400117. The reversal of 55400104 is 40100455.

55400104 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 53144100 + 2256004 = 7290^2 + 1502^2 .

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 in 3 ways as a sum of consecutive naturals, for example, 7579 + ... + 12970.

Almost surely, 2^55400104 is an apocalyptic number.

It is an amenable number.

55400104 is a deficient number, since it is larger than the sum of its proper divisors (48788396).

55400104 is a wasteful number, since it uses less digits than its factorization.

55400104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20892 (or 20888 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 55400104 is about 7443.1246126879. The cubic root of 55400104 is about 381.2151865013.

Adding to 55400104 its reverse (40100455), we get a palindrome (95500559).

The spelling of 55400104 in words is "fifty-five million, four hundred thousand, one hundred four".