55644134 has 32 divisors (see below), whose sum is σ = 105247296. Its totient is φ = 21473280.

The previous prime is 55644091. The next prime is 55644137. The reversal of 55644134 is 43144655.

It is a self number, because there is not a number n which added to its sum of digits gives 55644134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55644137) 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, 3734 + ... + 11190.

It is an arithmetic number, because the mean of its divisors is an integer number (3288978).

Almost surely, 2^55644134 is an apocalyptic number.

55644134 is a deficient number, since it is larger than the sum of its proper divisors (49603162).

55644134 is a wasteful number, since it uses less digits than its factorization.

55644134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7520.

The product of its digits is 28800, while the sum is 32.

The square root of 55644134 is about 7459.4995810711. The cubic root of 55644134 is about 381.7741005146.

Adding to 55644134 its reverse (43144655), we get a palindrome (98788789).

The spelling of 55644134 in words is "fifty-five million, six hundred forty-four thousand, one hundred thirty-four".