53819917 has 8 divisors (see below), whose sum is σ = 54706752. Its totient is φ = 52936800.

The previous prime is 53819903. The next prime is 53819923. The reversal of 53819917 is 71991835.

53819917 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 a de Polignac number, because none of the positive numbers 2^k-53819917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53819947) 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, 48513 + ... + 49609.

It is an arithmetic number, because the mean of its divisors is an integer number (6838344).

Almost surely, 2^53819917 is an apocalyptic number.

It is an amenable number.

53819917 is a deficient number, since it is larger than the sum of its proper divisors (886835).

53819917 is a wasteful number, since it uses less digits than its factorization.

53819917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1859.

The product of its digits is 68040, while the sum is 43.

The square root of 53819917 is about 7336.2058995096. The cubic root of 53819917 is about 377.5556796955. Note that the first 3 decimals are identical.

The spelling of 53819917 in words is "fifty-three million, eight hundred nineteen thousand, nine hundred seventeen".