55464643 has 4 divisors (see below), whose sum is σ = 59731168. Its totient is φ = 51198120.

The previous prime is 55464641. The next prime is 55464649. The reversal of 55464643 is 34646455.

55464643 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.

It is a cyclic number.

It is not a de Polignac number, because 55464643 - 2¹ = 55464641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55464641) 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, 2133243 + ... + 2133268.

It is an arithmetic number, because the mean of its divisors is an integer number (14932792).

Almost surely, 2^55464643 is an apocalyptic number.

55464643 is a deficient number, since it is larger than the sum of its proper divisors (4266525).

55464643 is a wasteful number, since it uses less digits than its factorization.

55464643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4266524.

The product of its digits is 172800, while the sum is 37.

The square root of 55464643 is about 7447.4588283521. The cubic root of 55464643 is about 381.3631627527.

The spelling of 55464643 in words is "fifty-five million, four hundred sixty-four thousand, six hundred forty-three".