55133436 has 12 divisors (see below), whose sum is σ = 128644712. Its totient is φ = 18377808.

The previous prime is 55133423. The next prime is 55133467. The reversal of 55133436 is 63433155.

It is a happy number.

55133436 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

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 in 3 ways as a sum of consecutive naturals, for example, 2297215 + ... + 2297238.

Almost surely, 2^55133436 is an apocalyptic number.

It is an amenable number.

55133436 is an abundant number, since it is smaller than the sum of its proper divisors (73511276).

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

55133436 is a wasteful number, since it uses less digits than its factorization.

55133436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4594460 (or 4594458 counting only the distinct ones).

The product of its digits is 16200, while the sum is 30.

The square root of 55133436 is about 7425.1892905164. The cubic root of 55133436 is about 380.6025436154.

The spelling of 55133436 in words is "fifty-five million, one hundred thirty-three thousand, four hundred thirty-six".