55430330 has 8 divisors (see below), whose sum is σ = 99774612. Its totient is φ = 22172128.

The previous prime is 55430327. The next prime is 55430351. The reversal of 55430330 is 3303455.

It can be written as a sum of positive squares in 2 ways, for example, as 52085089 + 3345241 = 7217^2 + 1829^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 55430296 and 55430305.

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, 2771507 + ... + 2771526.

Almost surely, 2^55430330 is an apocalyptic number.

55430330 is a deficient number, since it is larger than the sum of its proper divisors (44344282).

55430330 is a wasteful number, since it uses less digits than its factorization.

55430330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5543040.

The product of its (nonzero) digits is 2700, while the sum is 23.

The square root of 55430330 is about 7445.1548002711. The cubic root of 55430330 is about 381.2845035511.

Adding to 55430330 its reverse (3303455), we get a palindrome (58733785).

The spelling of 55430330 in words is "fifty-five million, four hundred thirty thousand, three hundred thirty".