55033530 has 16 divisors (see below), whose sum is σ = 132080544. Its totient is φ = 14675600.

The previous prime is 55033523. The next prime is 55033543. The reversal of 55033530 is 3533055.

It is a self number, because there is not a number n which added to its sum of digits gives 55033530.

It is an unprimeable number.

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, 917196 + ... + 917255.

It is an arithmetic number, because the mean of its divisors is an integer number (8255034).

Almost surely, 2^55033530 is an apocalyptic number.

55033530 is an abundant number, since it is smaller than the sum of its proper divisors (77047014).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55033530 is a wasteful number, since it uses less digits than its factorization.

55033530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1834461.

The product of its (nonzero) digits is 3375, while the sum is 24.

The square root of 55033530 is about 7418.4587348047. The cubic root of 55033530 is about 380.3725109807.

Adding to 55033530 its reverse (3533055), we get a palindrome (58566585).

The spelling of 55033530 in words is "fifty-five million, thirty-three thousand, five hundred thirty".