55044429 has 16 divisors (see below), whose sum is σ = 81928704. Its totient is φ = 32583600.

The previous prime is 55044413. The next prime is 55044433. The reversal of 55044429 is 92444055.

It is not a de Polignac number, because 55044429 - 2⁴ = 55044413 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a self number, because there is not a number n which added to its sum of digits gives 55044429.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55044029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17977 + ... + 20814.

It is an arithmetic number, because the mean of its divisors is an integer number (5120544).

Almost surely, 2^55044429 is an apocalyptic number.

It is an amenable number.

55044429 is a deficient number, since it is larger than the sum of its proper divisors (26884275).

55044429 is a wasteful number, since it uses less digits than its factorization.

55044429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38848.

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 55044429 is about 7419.1932849873. The cubic root of 55044429 is about 380.3976193486.

The spelling of 55044429 in words is "fifty-five million, forty-four thousand, four hundred twenty-nine".