54450905 has 16 divisors (see below), whose sum is σ = 66588480. Its totient is φ = 42737088.

The previous prime is 54450899. The next prime is 54450931. The reversal of 54450905 is 50905445.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 54450905 - 2⁴ = 54450889 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73919 + ... + 74651.

It is an arithmetic number, because the mean of its divisors is an integer number (4161780).

Almost surely, 2^54450905 is an apocalyptic number.

It is an amenable number.

54450905 is a deficient number, since it is larger than the sum of its proper divisors (12137575).

54450905 is a wasteful number, since it uses less digits than its factorization.

54450905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000.

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 54450905 is about 7379.0856479648. The cubic root of 54450905 is about 379.0254459933.

It can be divided in two parts, 54450 and 905, that added together give a palindrome (55355).

The spelling of 54450905 in words is "fifty-four million, four hundred fifty thousand, nine hundred five".