55430332 has 12 divisors (see below), whose sum is σ = 97055280. Its totient is φ = 27700256.

The previous prime is 55430327. The next prime is 55430351. The reversal of 55430332 is 23303455.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 55430297 and 55430306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12144 + ... + 16072.

It is an arithmetic number, because the mean of its divisors is an integer number (8087940).

Almost surely, 2^55430332 is an apocalyptic number.

It is an amenable number.

55430332 is a deficient number, since it is larger than the sum of its proper divisors (41624948).

55430332 is a wasteful number, since it uses less digits than its factorization.

55430332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7460 (or 7458 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 25.

The square root of 55430332 is about 7445.1549345867. The cubic root of 55430332 is about 381.2845081369.

Adding to 55430332 its reverse (23303455), we get a palindrome (78733787).

The spelling of 55430332 in words is "fifty-five million, four hundred thirty thousand, three hundred thirty-two".