55243045 has 16 divisors (see below), whose sum is σ = 77882112. Its totient is φ = 37085760.

The previous prime is 55243043. The next prime is 55243063. The reversal of 55243045 is 54034255.

55243045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55243045 - 2¹ = 55243043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55243043) 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 15 ways as a sum of consecutive naturals, for example, 37917 + ... + 39346.

It is an arithmetic number, because the mean of its divisors is an integer number (4867632).

Almost surely, 2^55243045 is an apocalyptic number.

55243045 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55243045 is a deficient number, since it is larger than the sum of its proper divisors (22639067).

55243045 is a wasteful number, since it uses less digits than its factorization.

55243045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77292.

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 55243045 is about 7432.5665150068. The cubic root of 55243045 is about 380.8545978557.

The spelling of 55243045 in words is "fifty-five million, two hundred forty-three thousand, forty-five".