55644434 has 16 divisors (see below), whose sum is σ = 89877600. Its totient is φ = 25740864.

The previous prime is 55644427. The next prime is 55644437. The reversal of 55644434 is 43444655.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 55644394 and 55644403.

It is not an unprimeable number, because it can be changed into a prime (55644437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11864 + ... + 15875.

It is an arithmetic number, because the mean of its divisors is an integer number (5617350).

Almost surely, 2^55644434 is an apocalyptic number.

55644434 is a deficient number, since it is larger than the sum of its proper divisors (34233166).

55644434 is a wasteful number, since it uses less digits than its factorization.

55644434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27817.

The product of its digits is 115200, while the sum is 35.

The square root of 55644434 is about 7459.5196896315. The cubic root of 55644434 is about 381.7747866128.

The spelling of 55644434 in words is "fifty-five million, six hundred forty-four thousand, four hundred thirty-four".