55404132 has 48 divisors (see below), whose sum is σ = 148122240. Its totient is φ = 15789312.

The previous prime is 55404121. The next prime is 55404137. The reversal of 55404132 is 23140455.

55404132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (55404137) 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 15 ways as a sum of consecutive naturals, for example, 51294 + ... + 52362.

It is an arithmetic number, because the mean of its divisors is an integer number (3085880).

Almost surely, 2^55404132 is an apocalyptic number.

It is an amenable number.

55404132 is an abundant number, since it is smaller than the sum of its proper divisors (92718108).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55404132 is a wasteful number, since it uses less digits than its factorization.

55404132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1700 (or 1698 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 55404132 is about 7443.3951930554. The cubic root of 55404132 is about 381.2244253381.

Adding to 55404132 its reverse (23140455), we get a palindrome (78544587).

The spelling of 55404132 in words is "fifty-five million, four hundred four thousand, one hundred thirty-two".