54693689 has 2 divisors, whose sum is σ = 54693690. Its totient is φ = 54693688.

The previous prime is 54693677. The next prime is 54693719. The reversal of 54693689 is 98639645.

54693689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34515625 + 20178064 = 5875^2 + 4492^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54693689 is a prime.

It is not a weakly prime, because it can be changed into another prime (54693589) 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 as a sum of consecutive naturals, namely, 27346844 + 27346845.

It is an arithmetic number, because the mean of its divisors is an integer number (27346845).

Almost surely, 2^54693689 is an apocalyptic number.

It is an amenable number.

54693689 is a deficient number, since it is larger than the sum of its proper divisors (1).

54693689 is an equidigital number, since it uses as much as digits as its factorization.

54693689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1399680, while the sum is 50.

The square root of 54693689 is about 7395.5181698107. The cubic root of 54693689 is about 379.5879397627.

The spelling of 54693689 in words is "fifty-four million, six hundred ninety-three thousand, six hundred eighty-nine".