55644332 has 24 divisors (see below), whose sum is σ = 103335120. Its totient is φ = 26127360.

The previous prime is 55644319. The next prime is 55644343. The reversal of 55644332 is 23344655.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54644 + ... + 55652.

It is an arithmetic number, because the mean of its divisors is an integer number (4305630).

Almost surely, 2^55644332 is an apocalyptic number.

It is an amenable number.

55644332 is a deficient number, since it is larger than the sum of its proper divisors (47690788).

55644332 is a wasteful number, since it uses less digits than its factorization.

55644332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1841 (or 1839 counting only the distinct ones).

The product of its digits is 43200, while the sum is 32.

The square root of 55644332 is about 7459.5128527270. The cubic root of 55644332 is about 381.7745533397.

Adding to 55644332 its reverse (23344655), we get a palindrome (78988987).

The spelling of 55644332 in words is "fifty-five million, six hundred forty-four thousand, three hundred thirty-two".