55502330 has 16 divisors (see below), whose sum is σ = 107589384. Its totient is φ = 20493120.

The previous prime is 55502327. The next prime is 55502339. The reversal of 55502330 is 3320555.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 42549529 + 12952801 = 6523^2 + 3599^2 .

It is a junction number, because it is equal to n+sod(n) for n = 55502296 and 55502305.

It is not an unprimeable number, because it can be changed into a prime (55502339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213341 + ... + 213600.

Almost surely, 2^55502330 is an apocalyptic number.

55502330 is a deficient number, since it is larger than the sum of its proper divisors (52087054).

55502330 is a wasteful number, since it uses less digits than its factorization.

55502330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426961.

The product of its (nonzero) digits is 2250, while the sum is 23.

The square root of 55502330 is about 7449.9885905953. The cubic root of 55502330 is about 381.4495191455.

Adding to 55502330 its reverse (3320555), we get a palindrome (58822885).

The spelling of 55502330 in words is "fifty-five million, five hundred two thousand, three hundred thirty".