55653321 has 8 divisors (see below), whose sum is σ = 74337120. Its totient is φ = 37035872.

The previous prime is 55653319. The next prime is 55653331. The reversal of 55653321 is 12335655.

55653321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 55653321 - 2¹ = 55653319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55653331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14595 + ... + 18008.

It is an arithmetic number, because the mean of its divisors is an integer number (9292140).

Almost surely, 2^55653321 is an apocalyptic number.

It is an amenable number.

55653321 is a deficient number, since it is larger than the sum of its proper divisors (18683799).

55653321 is a wasteful number, since it uses less digits than its factorization.

55653321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33175.

The product of its digits is 13500, while the sum is 30.

The square root of 55653321 is about 7460.1153476337. The cubic root of 55653321 is about 381.7951100108.

Adding to 55653321 its reverse (12335655), we get a palindrome (67988976).

The spelling of 55653321 in words is "fifty-five million, six hundred fifty-three thousand, three hundred twenty-one".