55643334 has 32 divisors (see below), whose sum is σ = 114048000. Its totient is φ = 18093504.

The previous prime is 55643311. The next prime is 55643353. The reversal of 55643334 is 43334655.

It is a junction number, because it is equal to n+sod(n) for n = 55643295 and 55643304.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41527 + ... + 42845.

It is an arithmetic number, because the mean of its divisors is an integer number (3564000).

Almost surely, 2^55643334 is an apocalyptic number.

55643334 is an abundant number, since it is smaller than the sum of its proper divisors (58404666).

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

55643334 is a wasteful number, since it uses less digits than its factorization.

55643334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1492.

The product of its digits is 64800, while the sum is 33.

The square root of 55643334 is about 7459.4459579784. The cubic root of 55643334 is about 381.7722709073.

Adding to 55643334 its reverse (43334655), we get a palindrome (98977989).

The spelling of 55643334 in words is "fifty-five million, six hundred forty-three thousand, three hundred thirty-four".