55360553 has 4 divisors (see below), whose sum is σ = 55426308. Its totient is φ = 55294800.

The previous prime is 55360549. The next prime is 55360573. The reversal of 55360553 is 35506355.

55360553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35506355 = 5 ⋅7101271.

It can be written as a sum of positive squares in 2 ways, for example, as 23697424 + 31663129 = 4868^2 + 5627^2 .

It is a cyclic number.

It is not a de Polignac number, because 55360553 - 2² = 55360549 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55360573) 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 3 ways as a sum of consecutive naturals, for example, 31598 + ... + 33303.

It is an arithmetic number, because the mean of its divisors is an integer number (13856577).

Almost surely, 2^55360553 is an apocalyptic number.

It is an amenable number.

55360553 is a deficient number, since it is larger than the sum of its proper divisors (65755).

55360553 is an equidigital number, since it uses as much as digits as its factorization.

55360553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65754.

The product of its (nonzero) digits is 33750, while the sum is 32.

The square root of 55360553 is about 7440.4672568327. The cubic root of 55360553 is about 381.1244464113.

The spelling of 55360553 in words is "fifty-five million, three hundred sixty thousand, five hundred fifty-three".