55645673 has 8 divisors (see below), whose sum is σ = 56743200. Its totient is φ = 54553408.

The previous prime is 55645649. The next prime is 55645679. The reversal of 55645673 is 37654655.

55645673 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 55645673 - 2⁸ = 55645417 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55645673.

It is not an unprimeable number, because it can be changed into a prime (55645679) 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, 25073 + ... + 27201.

It is an arithmetic number, because the mean of its divisors is an integer number (7092900).

Almost surely, 2^55645673 is an apocalyptic number.

It is an amenable number.

55645673 is a deficient number, since it is larger than the sum of its proper divisors (1097527).

55645673 is a wasteful number, since it uses less digits than its factorization.

55645673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2631.

The product of its digits is 378000, while the sum is 41.

The square root of 55645673 is about 7459.6027374117. The cubic root of 55645673 is about 381.7776201724. Note that the first 3 decimals are identical.

The spelling of 55645673 in words is "fifty-five million, six hundred forty-five thousand, six hundred seventy-three".