53168945 has 8 divisors (see below), whose sum is σ = 67555944. Its totient is φ = 40033024.

The previous prime is 53168903. The next prime is 53168953. The reversal of 53168945 is 54986135.

53168945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 13830961 + 39337984 = 3719^2 + 6272^2 .

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-53168945 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 7 ways as a sum of consecutive naturals, for example, 312674 + ... + 312843.

It is an arithmetic number, because the mean of its divisors is an integer number (8444493).

Almost surely, 2^53168945 is an apocalyptic number.

It is an amenable number.

53168945 is a deficient number, since it is larger than the sum of its proper divisors (14386999).

53168945 is a wasteful number, since it uses less digits than its factorization.

53168945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625539.

The product of its digits is 129600, while the sum is 41.

The square root of 53168945 is about 7291.7038475243. The cubic root of 53168945 is about 376.0272751642.

The spelling of 53168945 in words is "fifty-three million, one hundred sixty-eight thousand, nine hundred forty-five".