55030545 has 24 divisors (see below), whose sum is σ = 98677800. Its totient is φ = 28336896.

The previous prime is 55030543. The next prime is 55030553. The reversal of 55030545 is 54503055.

55030545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 21123216 + 33907329 = 4596^2 + 5823^2 .

It is not a de Polignac number, because 55030545 - 2¹ = 55030543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55030543) 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 23 ways as a sum of consecutive naturals, for example, 19780 + ... + 22389.

It is an arithmetic number, because the mean of its divisors is an integer number (4111575).

Almost surely, 2^55030545 is an apocalyptic number.

It is an amenable number.

55030545 is a deficient number, since it is larger than the sum of its proper divisors (43647255).

55030545 is a wasteful number, since it uses less digits than its factorization.

55030545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42209 (or 42206 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 27.

The square root of 55030545 is about 7418.2575447338. The cubic root of 55030545 is about 380.3656337644.

The spelling of 55030545 in words is "fifty-five million, thirty thousand, five hundred forty-five".