54699985 has 4 divisors (see below), whose sum is σ = 65639988. Its totient is φ = 43759984.

The previous prime is 54699979. The next prime is 54700001. The reversal of 54699985 is 58999645.

It is a happy number.

54699985 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 can be written as a sum of positive squares in 2 ways, for example, as 10504081 + 44195904 = 3241^2 + 6648^2 .

It is a cyclic number.

It is not a de Polignac number, because 54699985 - 2³ = 54699977 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 5469994 + ... + 5470003.

It is an arithmetic number, because the mean of its divisors is an integer number (16409997).

Almost surely, 2^54699985 is an apocalyptic number.

It is an amenable number.

54699985 is a deficient number, since it is larger than the sum of its proper divisors (10940003).

54699985 is a wasteful number, since it uses less digits than its factorization.

54699985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10940002.

The product of its digits is 3499200, while the sum is 55.

The square root of 54699985 is about 7395.9438207710. The cubic root of 54699985 is about 379.6025044777.

Adding to 54699985 its product of digits (3499200), we get a palindrome (58199185).

The spelling of 54699985 in words is "fifty-four million, six hundred ninety-nine thousand, nine hundred eighty-five".