55523330 has 16 divisors (see below), whose sum is σ = 101828664. Its totient is φ = 21790080.

The previous prime is 55523327. The next prime is 55523353. The reversal of 55523330 is 3332555.

It can be written as a sum of positive squares in 4 ways, for example, as 40538689 + 14984641 = 6367^2 + 3871^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 55523330.

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 7 ways as a sum of consecutive naturals, for example, 51851 + ... + 52910.

Almost surely, 2^55523330 is an apocalyptic number.

55523330 is a deficient number, since it is larger than the sum of its proper divisors (46305334).

55523330 is a wasteful number, since it uses less digits than its factorization.

55523330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104821.

The product of its (nonzero) digits is 6750, while the sum is 26.

The square root of 55523330 is about 7451.3978554363. The cubic root of 55523330 is about 381.4976218098.

Adding to 55523330 its reverse (3332555), we get a palindrome (58855885).

The spelling of 55523330 in words is "fifty-five million, five hundred twenty-three thousand, three hundred thirty".